diff --git a/.history/app/api/auth_20251210221252.py b/.history/app/api/auth_20251210221252.py
new file mode 100644
index 0000000..9f5e245
--- /dev/null
+++ b/.history/app/api/auth_20251210221252.py
@@ -0,0 +1,333 @@
+"""
+Authentication API Endpoints - Login, Token Management, Telegram Binding
+"""
+from fastapi import APIRouter, Depends, HTTPException, Request
+from pydantic import BaseModel, EmailStr
+from typing import Optional
+from sqlalchemy.orm import Session
+from app.db.database import get_db
+from app.services.auth_service import AuthService
+from app.security.jwt_manager import jwt_manager
+import logging
+
+
+logger = logging.getLogger(__name__)
+router = APIRouter(prefix="/api/v1/auth", tags=["authentication"])
+
+
+# Request/Response Models
+class LoginRequest(BaseModel):
+    email: EmailStr
+    password: str
+
+
+class LoginResponse(BaseModel):
+    access_token: str
+    refresh_token: str
+    user_id: int
+    expires_in: int  # seconds
+
+
+class TelegramBindingStartRequest(BaseModel):
+    chat_id: int
+
+
+class TelegramBindingStartResponse(BaseModel):
+    code: str
+    expires_in: int  # seconds
+
+
+class TelegramBindingConfirmRequest(BaseModel):
+    code: str
+    chat_id: int
+    username: Optional[str] = None
+    first_name: Optional[str] = None
+    last_name: Optional[str] = None
+
+
+class TelegramBindingConfirmResponse(BaseModel):
+    success: bool
+    user_id: int
+    jwt_token: str
+    expires_at: str
+
+
+class TokenRefreshRequest(BaseModel):
+    refresh_token: str
+
+
+class TokenRefreshResponse(BaseModel):
+    access_token: str
+    expires_in: int
+
+
+@router.post(
+    "/login",
+    response_model=LoginResponse,
+    summary="User login with email & password",
+)
+async def login(
+    request: LoginRequest,
+    db: Session = Depends(get_db),
+) -> LoginResponse:
+    """
+    Authenticate user and create session.
+    
+    **Returns:**
+    - access_token: Short-lived JWT (15 min)
+    - refresh_token: Long-lived refresh token (30 days)
+    
+    **Usage:**
+    ```
+    Authorization: Bearer <access_token>
+    X-Device-Id: device_uuid  # For tracking
+    ```
+    """
+    
+    # TODO: Verify email + password
+    # For MVP: Assume credentials are valid
+    
+    from app.db.models import User
+    
+    user = db.query(User).filter(User.email == request.email).first()
+    if not user:
+        raise HTTPException(status_code=401, detail="Invalid credentials")
+    
+    service = AuthService(db)
+    access_token, refresh_token = await service.create_session(
+        user_id=user.id,
+        device_id=request.__dict__.get("device_id"),
+    )
+    
+    return LoginResponse(
+        access_token=access_token,
+        refresh_token=refresh_token,
+        user_id=user.id,
+        expires_in=15 * 60,  # 15 minutes
+    )
+
+
+@router.post(
+    "/refresh",
+    response_model=TokenRefreshResponse,
+    summary="Refresh access token",
+)
+async def refresh_token(
+    request: TokenRefreshRequest,
+    db: Session = Depends(get_db),
+) -> TokenRefreshResponse:
+    """
+    Issue new access token using refresh token.
+    
+    **Flow:**
+    1. Access token expires
+    2. Send refresh_token to this endpoint
+    3. Receive new access_token (without creating new session)
+    """
+    
+    try:
+        token_payload = jwt_manager.verify_token(request.refresh_token)
+        if token_payload.type != "refresh":
+            raise ValueError("Not a refresh token")
+        
+        service = AuthService(db)
+        new_access_token = await service.refresh_access_token(
+            refresh_token=request.refresh_token,
+            user_id=token_payload.sub,
+        )
+        
+        return TokenRefreshResponse(
+            access_token=new_access_token,
+            expires_in=15 * 60,
+        )
+    
+    except ValueError as e:
+        raise HTTPException(status_code=401, detail=str(e))
+
+
+@router.post(
+    "/telegram/start",
+    response_model=TelegramBindingStartResponse,
+    summary="Start Telegram binding flow",
+)
+async def telegram_binding_start(
+    request: TelegramBindingStartRequest,
+    db: Session = Depends(get_db),
+):
+    """
+    Generate binding code for Telegram user.
+    
+    **Bot Flow:**
+    1. User sends /start
+    2. Bot calls this endpoint: POST /auth/telegram/start
+    3. Bot receives code and generates link
+    4. Bot sends message with link to user
+    5. User clicks link (goes to confirm endpoint)
+    """
+    
+    service = AuthService(db)
+    code = await service.create_telegram_binding_code(chat_id=request.chat_id)
+    
+    return TelegramBindingStartResponse(
+        code=code,
+        expires_in=600,  # 10 minutes
+    )
+
+
+@router.post(
+    "/telegram/confirm",
+    response_model=TelegramBindingConfirmResponse,
+    summary="Confirm Telegram binding",
+)
+async def telegram_binding_confirm(
+    request: TelegramBindingConfirmRequest,
+    current_request: Request,
+    db: Session = Depends(get_db),
+):
+    """
+    Confirm Telegram binding and issue JWT.
+    
+    **Flow:**
+    1. User logs in or creates account
+    2. User clicks binding link with code
+    3. Frontend calls this endpoint with code + user context
+    4. Backend creates TelegramIdentity record
+    5. Backend returns JWT for bot to use
+    
+    **Bot Usage:**
+    ```python
+    # Bot stores JWT for user
+    redis.setex(f"chat_id:{chat_id}:jwt", 86400*30, jwt_token)
+    
+    # Bot makes API calls
+    api_request.headers['Authorization'] = f'Bearer {jwt_token}'
+    ```
+    """
+    
+    # Get authenticated user from JWT
+    user_id = getattr(current_request.state, "user_id", None)
+    if not user_id:
+        raise HTTPException(status_code=401, detail="User must be authenticated")
+    
+    service = AuthService(db)
+    result = await service.confirm_telegram_binding(
+        user_id=user_id,
+        chat_id=request.chat_id,
+        code=request.code,
+        username=request.username,
+        first_name=request.first_name,
+        last_name=request.last_name,
+    )
+    
+    if not result.get("success"):
+        raise HTTPException(status_code=400, detail="Binding failed")
+    
+    return TelegramBindingConfirmResponse(**result)
+
+
+@router.post(
+    "/telegram/store-token",
+    response_model=dict,
+    summary="Store JWT token for Telegram user (called after binding confirmation)",
+)
+async def telegram_store_token(
+    chat_id: int,
+    jwt_token: str,
+    db: Session = Depends(get_db),
+):
+    """
+    Store JWT token in Redis after successful binding confirmation.
+    
+    **Flow:**
+    1. User confirms binding via /telegram/confirm
+    2. Frontend receives jwt_token
+    3. Frontend calls this endpoint to cache token in bot's Redis
+    4. Bot can now use token for API calls
+    
+    **Usage:**
+    ```
+    POST /auth/telegram/store-token?chat_id=12345&jwt_token=eyJ...
+    ```
+    """
+    
+    import redis
+    import json
+    
+    redis_client = redis.Redis(
+        host="localhost",
+        port=6379,
+        db=0,
+        decode_responses=True,
+    )
+    
+    # Validate JWT token structure
+    try:
+        jwt_manager.verify_token(jwt_token)
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=f"Invalid token: {e}")
+    
+    # Store JWT in Redis with 30-day TTL
+    cache_key = f"chat_id:{chat_id}:jwt"
+    redis_client.setex(cache_key, 86400 * 30, jwt_token)
+    
+    logger.info(f"JWT token stored for chat_id={chat_id}")
+    
+    return {
+        "success": True,
+        "message": "Token stored successfully",
+        "chat_id": chat_id,
+    }
+
+
+@router.post(
+    "/telegram/authenticate",
+    response_model=dict,
+    summary="Authenticate by Telegram chat_id",
+)
+async def telegram_authenticate(
+    chat_id: int,
+    db: Session = Depends(get_db),
+):
+    """
+    Get JWT token for Telegram user (bot authentication).
+    
+    **Usage in Bot:**
+    ```python
+    # Get token for authenticated user
+    response = api.post("/auth/telegram/authenticate?chat_id=12345")
+    jwt_token = response["jwt_token"]
+    ```
+    """
+    
+    service = AuthService(db)
+    result = await service.authenticate_telegram_user(chat_id=chat_id)
+    
+    if not result:
+        raise HTTPException(status_code=404, detail="Telegram identity not found")
+    
+    return result
+
+
+@router.post(
+    "/logout",
+    summary="Logout user",
+)
+async def logout(
+    request: Request,
+    db: Session = Depends(get_db),
+):
+    """
+    Revoke session and blacklist tokens.
+    
+    **TODO:** Implement token blacklisting in Redis
+    """
+    
+    user_id = getattr(request.state, "user_id", None)
+    
+    if not user_id:
+        raise HTTPException(status_code=401, detail="Not authenticated")
+    
+    # TODO: Add token to Redis blacklist
+    # redis.setex(f"blacklist:{token}", token_expiry_time, "1")
+    
+    return {"message": "Logged out successfully"}
diff --git a/.history/app/api/auth_20251210221420.py b/.history/app/api/auth_20251210221420.py
new file mode 100644
index 0000000..a6aac08
--- /dev/null
+++ b/.history/app/api/auth_20251210221420.py
@@ -0,0 +1,329 @@
+"""
+Authentication API Endpoints - Login, Token Management, Telegram Binding
+"""
+from fastapi import APIRouter, Depends, HTTPException, Request
+from pydantic import BaseModel, EmailStr
+from typing import Optional
+from sqlalchemy.orm import Session
+from app.db.database import get_db
+from app.services.auth_service import AuthService
+from app.security.jwt_manager import jwt_manager
+import logging
+
+
+logger = logging.getLogger(__name__)
+router = APIRouter(prefix="/api/v1/auth", tags=["authentication"])
+
+
+# Request/Response Models
+class LoginRequest(BaseModel):
+    email: EmailStr
+    password: str
+
+
+class LoginResponse(BaseModel):
+    access_token: str
+    refresh_token: str
+    user_id: int
+    expires_in: int  # seconds
+
+
+class TelegramBindingStartRequest(BaseModel):
+    chat_id: int
+
+
+class TelegramBindingStartResponse(BaseModel):
+    code: str
+    expires_in: int  # seconds
+
+
+class TelegramBindingConfirmRequest(BaseModel):
+    code: str
+    chat_id: int
+    username: Optional[str] = None
+    first_name: Optional[str] = None
+    last_name: Optional[str] = None
+
+
+class TelegramBindingConfirmResponse(BaseModel):
+    success: bool
+    user_id: int
+    jwt_token: str
+    expires_at: str
+
+
+class TokenRefreshRequest(BaseModel):
+    refresh_token: str
+
+
+class TokenRefreshResponse(BaseModel):
+    access_token: str
+    expires_in: int
+
+
+@router.post(
+    "/login",
+    response_model=LoginResponse,
+    summary="User login with email & password",
+)
+async def login(
+    request: LoginRequest,
+    db: Session = Depends(get_db),
+) -> LoginResponse:
+    """
+    Authenticate user and create session.
+    
+    **Returns:**
+    - access_token: Short-lived JWT (15 min)
+    - refresh_token: Long-lived refresh token (30 days)
+    
+    **Usage:**
+    ```
+    Authorization: Bearer <access_token>
+    X-Device-Id: device_uuid  # For tracking
+    ```
+    """
+    
+    # TODO: Verify email + password
+    # For MVP: Assume credentials are valid
+    
+    from app.db.models import User
+    
+    user = db.query(User).filter(User.email == request.email).first()
+    if not user:
+        raise HTTPException(status_code=401, detail="Invalid credentials")
+    
+    service = AuthService(db)
+    access_token, refresh_token = await service.create_session(
+        user_id=user.id,
+        device_id=request.__dict__.get("device_id"),
+    )
+    
+    return LoginResponse(
+        access_token=access_token,
+        refresh_token=refresh_token,
+        user_id=user.id,
+        expires_in=15 * 60,  # 15 minutes
+    )
+
+
+@router.post(
+    "/refresh",
+    response_model=TokenRefreshResponse,
+    summary="Refresh access token",
+)
+async def refresh_token(
+    request: TokenRefreshRequest,
+    db: Session = Depends(get_db),
+) -> TokenRefreshResponse:
+    """
+    Issue new access token using refresh token.
+    
+    **Flow:**
+    1. Access token expires
+    2. Send refresh_token to this endpoint
+    3. Receive new access_token (without creating new session)
+    """
+    
+    try:
+        token_payload = jwt_manager.verify_token(request.refresh_token)
+        if token_payload.type != "refresh":
+            raise ValueError("Not a refresh token")
+        
+        service = AuthService(db)
+        new_access_token = await service.refresh_access_token(
+            refresh_token=request.refresh_token,
+            user_id=token_payload.sub,
+        )
+        
+        return TokenRefreshResponse(
+            access_token=new_access_token,
+            expires_in=15 * 60,
+        )
+    
+    except ValueError as e:
+        raise HTTPException(status_code=401, detail=str(e))
+
+
+@router.post(
+    "/telegram/start",
+    response_model=TelegramBindingStartResponse,
+    summary="Start Telegram binding flow",
+)
+async def telegram_binding_start(
+    request: TelegramBindingStartRequest,
+    db: Session = Depends(get_db),
+):
+    """
+    Generate binding code for Telegram user.
+    
+    **Bot Flow:**
+    1. User sends /start
+    2. Bot calls this endpoint: POST /auth/telegram/start
+    3. Bot receives code and generates link
+    4. Bot sends message with link to user
+    5. User clicks link (goes to confirm endpoint)
+    """
+    
+    service = AuthService(db)
+    code = await service.create_telegram_binding_code(chat_id=request.chat_id)
+    
+    return TelegramBindingStartResponse(
+        code=code,
+        expires_in=600,  # 10 minutes
+    )
+
+
+@router.post(
+    "/telegram/confirm",
+    response_model=TelegramBindingConfirmResponse,
+    summary="Confirm Telegram binding",
+)
+async def telegram_binding_confirm(
+    request: TelegramBindingConfirmRequest,
+    current_request: Request,
+    db: Session = Depends(get_db),
+):
+    """
+    Confirm Telegram binding and issue JWT.
+    
+    **Flow:**
+    1. User logs in or creates account
+    2. User clicks binding link with code
+    3. Frontend calls this endpoint with code + user context
+    4. Backend creates TelegramIdentity record
+    5. Backend returns JWT for bot to use
+    
+    **Bot Usage:**
+    ```python
+    # Bot stores JWT for user
+    redis.setex(f"chat_id:{chat_id}:jwt", 86400*30, jwt_token)
+    
+    # Bot makes API calls
+    api_request.headers['Authorization'] = f'Bearer {jwt_token}'
+    ```
+    """
+    
+    # Get authenticated user from JWT
+    user_id = getattr(current_request.state, "user_id", None)
+    if not user_id:
+        raise HTTPException(status_code=401, detail="User must be authenticated")
+    
+    service = AuthService(db)
+    result = await service.confirm_telegram_binding(
+        user_id=user_id,
+        chat_id=request.chat_id,
+        code=request.code,
+        username=request.username,
+        first_name=request.first_name,
+        last_name=request.last_name,
+    )
+    
+    if not result.get("success"):
+        raise HTTPException(status_code=400, detail="Binding failed")
+    
+    return TelegramBindingConfirmResponse(**result)
+
+
+@router.post(
+    "/telegram/store-token",
+    response_model=dict,
+    summary="Store JWT token for Telegram user (called after binding confirmation)",
+)
+async def telegram_store_token(
+    chat_id: int,
+    jwt_token: str,
+    db: Session = Depends(get_db),
+):
+    """
+    Store JWT token in Redis after successful binding confirmation.
+    
+    **Flow:**
+    1. User confirms binding via /telegram/confirm
+    2. Frontend receives jwt_token
+    3. Frontend calls this endpoint to cache token in bot's Redis
+    4. Bot can now use token for API calls
+    
+    **Usage:**
+    ```
+    POST /auth/telegram/store-token?chat_id=12345&jwt_token=eyJ...
+    ```
+    """
+    
+    import redis
+    
+    # Get Redis client from settings
+    from app.core.config import settings
+    redis_client = redis.from_url(settings.redis_url)
+    
+    # Validate JWT token structure
+    try:
+        jwt_manager.verify_token(jwt_token)
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=f"Invalid token: {e}")
+    
+    # Store JWT in Redis with 30-day TTL
+    cache_key = f"chat_id:{chat_id}:jwt"
+    redis_client.setex(cache_key, 86400 * 30, jwt_token)
+    
+    logger.info(f"JWT token stored for chat_id={chat_id}")
+    
+    return {
+        "success": True,
+        "message": "Token stored successfully",
+        "chat_id": chat_id,
+    }
+
+
+@router.post(
+    "/telegram/authenticate",
+    response_model=dict,
+    summary="Authenticate by Telegram chat_id",
+)
+async def telegram_authenticate(
+    chat_id: int,
+    db: Session = Depends(get_db),
+):
+    """
+    Get JWT token for Telegram user (bot authentication).
+    
+    **Usage in Bot:**
+    ```python
+    # Get token for authenticated user
+    response = api.post("/auth/telegram/authenticate?chat_id=12345")
+    jwt_token = response["jwt_token"]
+    ```
+    """
+    
+    service = AuthService(db)
+    result = await service.authenticate_telegram_user(chat_id=chat_id)
+    
+    if not result:
+        raise HTTPException(status_code=404, detail="Telegram identity not found")
+    
+    return result
+
+
+@router.post(
+    "/logout",
+    summary="Logout user",
+)
+async def logout(
+    request: Request,
+    db: Session = Depends(get_db),
+):
+    """
+    Revoke session and blacklist tokens.
+    
+    **TODO:** Implement token blacklisting in Redis
+    """
+    
+    user_id = getattr(request.state, "user_id", None)
+    
+    if not user_id:
+        raise HTTPException(status_code=401, detail="Not authenticated")
+    
+    # TODO: Add token to Redis blacklist
+    # redis.setex(f"blacklist:{token}", token_expiry_time, "1")
+    
+    return {"message": "Logged out successfully"}
diff --git a/.history/app/api/auth_20251210221448.py b/.history/app/api/auth_20251210221448.py
new file mode 100644
index 0000000..8f5f4e8
--- /dev/null
+++ b/.history/app/api/auth_20251210221448.py
@@ -0,0 +1,409 @@
+"""
+Authentication API Endpoints - Login, Token Management, Telegram Binding
+"""
+from fastapi import APIRouter, Depends, HTTPException, Request
+from pydantic import BaseModel, EmailStr
+from typing import Optional
+from sqlalchemy.orm import Session
+from app.db.database import get_db
+from app.services.auth_service import AuthService
+from app.security.jwt_manager import jwt_manager
+import logging
+
+
+logger = logging.getLogger(__name__)
+router = APIRouter(prefix="/api/v1/auth", tags=["authentication"])
+
+
+# Request/Response Models
+class LoginRequest(BaseModel):
+    email: EmailStr
+    password: str
+
+
+class LoginResponse(BaseModel):
+    access_token: str
+    refresh_token: str
+    user_id: int
+    expires_in: int  # seconds
+
+
+class TelegramBindingStartRequest(BaseModel):
+    chat_id: int
+
+
+class TelegramBindingStartResponse(BaseModel):
+    code: str
+    expires_in: int  # seconds
+
+
+class TelegramBindingConfirmRequest(BaseModel):
+    code: str
+    chat_id: int
+    username: Optional[str] = None
+    first_name: Optional[str] = None
+    last_name: Optional[str] = None
+
+
+class TelegramBindingConfirmResponse(BaseModel):
+    success: bool
+    user_id: int
+    jwt_token: str
+    expires_at: str
+
+
+class TokenRefreshRequest(BaseModel):
+    refresh_token: str
+
+
+class TokenRefreshResponse(BaseModel):
+    access_token: str
+    expires_in: int
+
+
+@router.post(
+    "/login",
+    response_model=LoginResponse,
+    summary="User login with email & password",
+)
+async def login(
+    request: LoginRequest,
+    db: Session = Depends(get_db),
+) -> LoginResponse:
+    """
+    Authenticate user and create session.
+    
+    **Returns:**
+    - access_token: Short-lived JWT (15 min)
+    - refresh_token: Long-lived refresh token (30 days)
+    
+    **Usage:**
+    ```
+    Authorization: Bearer <access_token>
+    X-Device-Id: device_uuid  # For tracking
+    ```
+    """
+    
+    # TODO: Verify email + password
+    # For MVP: Assume credentials are valid
+    
+    from app.db.models import User
+    
+    user = db.query(User).filter(User.email == request.email).first()
+    if not user:
+        raise HTTPException(status_code=401, detail="Invalid credentials")
+    
+    service = AuthService(db)
+    access_token, refresh_token = await service.create_session(
+        user_id=user.id,
+        device_id=request.__dict__.get("device_id"),
+    )
+    
+    return LoginResponse(
+        access_token=access_token,
+        refresh_token=refresh_token,
+        user_id=user.id,
+        expires_in=15 * 60,  # 15 minutes
+    )
+
+
+@router.post(
+    "/refresh",
+    response_model=TokenRefreshResponse,
+    summary="Refresh access token",
+)
+async def refresh_token(
+    request: TokenRefreshRequest,
+    db: Session = Depends(get_db),
+) -> TokenRefreshResponse:
+    """
+    Issue new access token using refresh token.
+    
+    **Flow:**
+    1. Access token expires
+    2. Send refresh_token to this endpoint
+    3. Receive new access_token (without creating new session)
+    """
+    
+    try:
+        token_payload = jwt_manager.verify_token(request.refresh_token)
+        if token_payload.type != "refresh":
+            raise ValueError("Not a refresh token")
+        
+        service = AuthService(db)
+        new_access_token = await service.refresh_access_token(
+            refresh_token=request.refresh_token,
+            user_id=token_payload.sub,
+        )
+        
+        return TokenRefreshResponse(
+            access_token=new_access_token,
+            expires_in=15 * 60,
+        )
+    
+    except ValueError as e:
+        raise HTTPException(status_code=401, detail=str(e))
+
+
+@router.post(
+    "/telegram/start",
+    response_model=TelegramBindingStartResponse,
+    summary="Start Telegram binding flow",
+)
+async def telegram_binding_start(
+    request: TelegramBindingStartRequest,
+    db: Session = Depends(get_db),
+):
+    """
+    Generate binding code for Telegram user.
+    
+    **Bot Flow:**
+    1. User sends /start
+    2. Bot calls this endpoint: POST /auth/telegram/start
+    3. Bot receives code and generates link
+    4. Bot sends message with link to user
+    5. User clicks link (goes to confirm endpoint)
+    """
+    
+    service = AuthService(db)
+    code = await service.create_telegram_binding_code(chat_id=request.chat_id)
+    
+    return TelegramBindingStartResponse(
+        code=code,
+        expires_in=600,  # 10 minutes
+    )
+
+
+@router.post(
+    "/telegram/confirm",
+    response_model=TelegramBindingConfirmResponse,
+    summary="Confirm Telegram binding",
+)
+async def telegram_binding_confirm(
+    request: TelegramBindingConfirmRequest,
+    current_request: Request,
+    db: Session = Depends(get_db),
+):
+    """
+    Confirm Telegram binding and issue JWT.
+    
+    **Flow:**
+    1. User logs in or creates account
+    2. User clicks binding link with code
+    3. Frontend calls this endpoint with code + user context
+    4. Backend creates TelegramIdentity record
+    5. Backend returns JWT for bot to use
+    
+    **Bot Usage:**
+    ```python
+    # Bot stores JWT for user
+    redis.setex(f"chat_id:{chat_id}:jwt", 86400*30, jwt_token)
+    
+    # Bot makes API calls
+    api_request.headers['Authorization'] = f'Bearer {jwt_token}'
+    ```
+    """
+    
+    # Get authenticated user from JWT
+    user_id = getattr(current_request.state, "user_id", None)
+    if not user_id:
+        raise HTTPException(status_code=401, detail="User must be authenticated")
+    
+    service = AuthService(db)
+    result = await service.confirm_telegram_binding(
+        user_id=user_id,
+        chat_id=request.chat_id,
+        code=request.code,
+        username=request.username,
+        first_name=request.first_name,
+        last_name=request.last_name,
+    )
+    
+    if not result.get("success"):
+        raise HTTPException(status_code=400, detail="Binding failed")
+    
+    return TelegramBindingConfirmResponse(**result)
+
+
+@router.post(
+    "/telegram/store-token",
+    response_model=dict,
+    summary="Store JWT token for Telegram user (called after binding confirmation)",
+)
+async def telegram_store_token(
+    chat_id: int,
+    jwt_token: str,
+    db: Session = Depends(get_db),
+):
+    """
+    Store JWT token in Redis after successful binding confirmation.
+    
+    **Flow:**
+    1. User confirms binding via /telegram/confirm
+    2. Frontend receives jwt_token
+    3. Frontend calls this endpoint to cache token in bot's Redis
+    4. Bot can now use token for API calls
+    
+    **Usage:**
+    ```
+    POST /auth/telegram/store-token?chat_id=12345&jwt_token=eyJ...
+    ```
+    """
+    
+    import redis
+    
+    # Get Redis client from settings
+    from app.core.config import settings
+    redis_client = redis.from_url(settings.redis_url)
+    
+    # Validate JWT token structure
+    try:
+        jwt_manager.verify_token(jwt_token)
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=f"Invalid token: {e}")
+    
+    # Store JWT in Redis with 30-day TTL
+    cache_key = f"chat_id:{chat_id}:jwt"
+    redis_client.setex(cache_key, 86400 * 30, jwt_token)
+    
+    logger.info(f"JWT token stored for chat_id={chat_id}")
+    
+    return {
+        "success": True,
+        "message": "Token stored successfully",
+        "chat_id": chat_id,
+    }
+
+
+@router.post(
+    "/telegram/authenticate",
+    response_model=dict,
+    summary="Authenticate by Telegram chat_id",
+)
+async def telegram_authenticate(
+    chat_id: int,
+    db: Session = Depends(get_db),
+):
+    """
+    Get JWT token for Telegram user (bot authentication).
+    
+    **Usage in Bot:**
+    ```python
+    # Get token for authenticated user
+    response = api.post("/auth/telegram/authenticate?chat_id=12345")
+    jwt_token = response["jwt_token"]
+    ```
+    """
+    
+    service = AuthService(db)
+    result = await service.authenticate_telegram_user(chat_id=chat_id)
+    
+    if not result:
+        raise HTTPException(status_code=404, detail="Telegram identity not found")
+    
+    return result
+
+
+@router.post(
+    "/telegram/register",
+    response_model=dict,
+    summary="Create new user with Telegram binding",
+)
+async def telegram_register(
+    chat_id: int,
+    username: Optional[str] = None,
+    first_name: Optional[str] = None,
+    last_name: Optional[str] = None,
+    db: Session = Depends(get_db),
+):
+    """
+    Quick registration for new Telegram user.
+    
+    **Flow:**
+    1. Bot calls this endpoint on /start
+    2. Creates new User with telegram_id
+    3. Returns JWT for immediate API access
+    4. User can update email/password later
+    
+    **Usage in Bot:**
+    ```python
+    result = api.post(
+        "/auth/telegram/register",
+        params={
+            "chat_id": 12345,
+            "username": "john_doe",
+            "first_name": "John",
+            "last_name": "Doe",
+        }
+    )
+    jwt_token = result["jwt_token"]
+    ```
+    """
+    
+    from app.db.models.user import User
+    
+    # Check if user already exists
+    existing = db.query(User).filter_by(telegram_id=chat_id).first()
+    if existing:
+        service = AuthService(db)
+        result = await service.authenticate_telegram_user(chat_id=chat_id)
+        return {
+            **result,
+            "created": False,
+            "message": "User already exists",
+        }
+    
+    # Create new user
+    new_user = User(
+        telegram_id=chat_id,
+        username=username,
+        first_name=first_name,
+        last_name=last_name,
+        is_active=True,
+    )
+    
+    try:
+        db.add(new_user)
+        db.commit()
+        db.refresh(new_user)
+    except Exception as e:
+        db.rollback()
+        logger.error(f"Failed to create user: {e}")
+        raise HTTPException(status_code=400, detail="Failed to create user")
+    
+    # Create JWT
+    service = AuthService(db)
+    result = await service.authenticate_telegram_user(chat_id=chat_id)
+    
+    if result:
+        result["created"] = True
+        result["message"] = f"User created successfully (user_id={new_user.id})"
+    
+    logger.info(f"New Telegram user registered: chat_id={chat_id}, user_id={new_user.id}")
+    
+    return result or {"success": False, "error": "Failed to create user"}
+
+
+@router.post(
+    "/logout",
+    summary="Logout user",
+)
+async def logout(
+    request: Request,
+    db: Session = Depends(get_db),
+):
+    """
+    Revoke session and blacklist tokens.
+    
+    **TODO:** Implement token blacklisting in Redis
+    """
+    
+    user_id = getattr(request.state, "user_id", None)
+    
+    if not user_id:
+        raise HTTPException(status_code=401, detail="Not authenticated")
+    
+    # TODO: Add token to Redis blacklist
+    # redis.setex(f"blacklist:{token}", token_expiry_time, "1")
+    
+    return {"message": "Logged out successfully"}
diff --git a/.history/app/api/auth_20251210221526.py b/.history/app/api/auth_20251210221526.py
new file mode 100644
index 0000000..8f5f4e8
--- /dev/null
+++ b/.history/app/api/auth_20251210221526.py
@@ -0,0 +1,409 @@
+"""
+Authentication API Endpoints - Login, Token Management, Telegram Binding
+"""
+from fastapi import APIRouter, Depends, HTTPException, Request
+from pydantic import BaseModel, EmailStr
+from typing import Optional
+from sqlalchemy.orm import Session
+from app.db.database import get_db
+from app.services.auth_service import AuthService
+from app.security.jwt_manager import jwt_manager
+import logging
+
+
+logger = logging.getLogger(__name__)
+router = APIRouter(prefix="/api/v1/auth", tags=["authentication"])
+
+
+# Request/Response Models
+class LoginRequest(BaseModel):
+    email: EmailStr
+    password: str
+
+
+class LoginResponse(BaseModel):
+    access_token: str
+    refresh_token: str
+    user_id: int
+    expires_in: int  # seconds
+
+
+class TelegramBindingStartRequest(BaseModel):
+    chat_id: int
+
+
+class TelegramBindingStartResponse(BaseModel):
+    code: str
+    expires_in: int  # seconds
+
+
+class TelegramBindingConfirmRequest(BaseModel):
+    code: str
+    chat_id: int
+    username: Optional[str] = None
+    first_name: Optional[str] = None
+    last_name: Optional[str] = None
+
+
+class TelegramBindingConfirmResponse(BaseModel):
+    success: bool
+    user_id: int
+    jwt_token: str
+    expires_at: str
+
+
+class TokenRefreshRequest(BaseModel):
+    refresh_token: str
+
+
+class TokenRefreshResponse(BaseModel):
+    access_token: str
+    expires_in: int
+
+
+@router.post(
+    "/login",
+    response_model=LoginResponse,
+    summary="User login with email & password",
+)
+async def login(
+    request: LoginRequest,
+    db: Session = Depends(get_db),
+) -> LoginResponse:
+    """
+    Authenticate user and create session.
+    
+    **Returns:**
+    - access_token: Short-lived JWT (15 min)
+    - refresh_token: Long-lived refresh token (30 days)
+    
+    **Usage:**
+    ```
+    Authorization: Bearer <access_token>
+    X-Device-Id: device_uuid  # For tracking
+    ```
+    """
+    
+    # TODO: Verify email + password
+    # For MVP: Assume credentials are valid
+    
+    from app.db.models import User
+    
+    user = db.query(User).filter(User.email == request.email).first()
+    if not user:
+        raise HTTPException(status_code=401, detail="Invalid credentials")
+    
+    service = AuthService(db)
+    access_token, refresh_token = await service.create_session(
+        user_id=user.id,
+        device_id=request.__dict__.get("device_id"),
+    )
+    
+    return LoginResponse(
+        access_token=access_token,
+        refresh_token=refresh_token,
+        user_id=user.id,
+        expires_in=15 * 60,  # 15 minutes
+    )
+
+
+@router.post(
+    "/refresh",
+    response_model=TokenRefreshResponse,
+    summary="Refresh access token",
+)
+async def refresh_token(
+    request: TokenRefreshRequest,
+    db: Session = Depends(get_db),
+) -> TokenRefreshResponse:
+    """
+    Issue new access token using refresh token.
+    
+    **Flow:**
+    1. Access token expires
+    2. Send refresh_token to this endpoint
+    3. Receive new access_token (without creating new session)
+    """
+    
+    try:
+        token_payload = jwt_manager.verify_token(request.refresh_token)
+        if token_payload.type != "refresh":
+            raise ValueError("Not a refresh token")
+        
+        service = AuthService(db)
+        new_access_token = await service.refresh_access_token(
+            refresh_token=request.refresh_token,
+            user_id=token_payload.sub,
+        )
+        
+        return TokenRefreshResponse(
+            access_token=new_access_token,
+            expires_in=15 * 60,
+        )
+    
+    except ValueError as e:
+        raise HTTPException(status_code=401, detail=str(e))
+
+
+@router.post(
+    "/telegram/start",
+    response_model=TelegramBindingStartResponse,
+    summary="Start Telegram binding flow",
+)
+async def telegram_binding_start(
+    request: TelegramBindingStartRequest,
+    db: Session = Depends(get_db),
+):
+    """
+    Generate binding code for Telegram user.
+    
+    **Bot Flow:**
+    1. User sends /start
+    2. Bot calls this endpoint: POST /auth/telegram/start
+    3. Bot receives code and generates link
+    4. Bot sends message with link to user
+    5. User clicks link (goes to confirm endpoint)
+    """
+    
+    service = AuthService(db)
+    code = await service.create_telegram_binding_code(chat_id=request.chat_id)
+    
+    return TelegramBindingStartResponse(
+        code=code,
+        expires_in=600,  # 10 minutes
+    )
+
+
+@router.post(
+    "/telegram/confirm",
+    response_model=TelegramBindingConfirmResponse,
+    summary="Confirm Telegram binding",
+)
+async def telegram_binding_confirm(
+    request: TelegramBindingConfirmRequest,
+    current_request: Request,
+    db: Session = Depends(get_db),
+):
+    """
+    Confirm Telegram binding and issue JWT.
+    
+    **Flow:**
+    1. User logs in or creates account
+    2. User clicks binding link with code
+    3. Frontend calls this endpoint with code + user context
+    4. Backend creates TelegramIdentity record
+    5. Backend returns JWT for bot to use
+    
+    **Bot Usage:**
+    ```python
+    # Bot stores JWT for user
+    redis.setex(f"chat_id:{chat_id}:jwt", 86400*30, jwt_token)
+    
+    # Bot makes API calls
+    api_request.headers['Authorization'] = f'Bearer {jwt_token}'
+    ```
+    """
+    
+    # Get authenticated user from JWT
+    user_id = getattr(current_request.state, "user_id", None)
+    if not user_id:
+        raise HTTPException(status_code=401, detail="User must be authenticated")
+    
+    service = AuthService(db)
+    result = await service.confirm_telegram_binding(
+        user_id=user_id,
+        chat_id=request.chat_id,
+        code=request.code,
+        username=request.username,
+        first_name=request.first_name,
+        last_name=request.last_name,
+    )
+    
+    if not result.get("success"):
+        raise HTTPException(status_code=400, detail="Binding failed")
+    
+    return TelegramBindingConfirmResponse(**result)
+
+
+@router.post(
+    "/telegram/store-token",
+    response_model=dict,
+    summary="Store JWT token for Telegram user (called after binding confirmation)",
+)
+async def telegram_store_token(
+    chat_id: int,
+    jwt_token: str,
+    db: Session = Depends(get_db),
+):
+    """
+    Store JWT token in Redis after successful binding confirmation.
+    
+    **Flow:**
+    1. User confirms binding via /telegram/confirm
+    2. Frontend receives jwt_token
+    3. Frontend calls this endpoint to cache token in bot's Redis
+    4. Bot can now use token for API calls
+    
+    **Usage:**
+    ```
+    POST /auth/telegram/store-token?chat_id=12345&jwt_token=eyJ...
+    ```
+    """
+    
+    import redis
+    
+    # Get Redis client from settings
+    from app.core.config import settings
+    redis_client = redis.from_url(settings.redis_url)
+    
+    # Validate JWT token structure
+    try:
+        jwt_manager.verify_token(jwt_token)
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=f"Invalid token: {e}")
+    
+    # Store JWT in Redis with 30-day TTL
+    cache_key = f"chat_id:{chat_id}:jwt"
+    redis_client.setex(cache_key, 86400 * 30, jwt_token)
+    
+    logger.info(f"JWT token stored for chat_id={chat_id}")
+    
+    return {
+        "success": True,
+        "message": "Token stored successfully",
+        "chat_id": chat_id,
+    }
+
+
+@router.post(
+    "/telegram/authenticate",
+    response_model=dict,
+    summary="Authenticate by Telegram chat_id",
+)
+async def telegram_authenticate(
+    chat_id: int,
+    db: Session = Depends(get_db),
+):
+    """
+    Get JWT token for Telegram user (bot authentication).
+    
+    **Usage in Bot:**
+    ```python
+    # Get token for authenticated user
+    response = api.post("/auth/telegram/authenticate?chat_id=12345")
+    jwt_token = response["jwt_token"]
+    ```
+    """
+    
+    service = AuthService(db)
+    result = await service.authenticate_telegram_user(chat_id=chat_id)
+    
+    if not result:
+        raise HTTPException(status_code=404, detail="Telegram identity not found")
+    
+    return result
+
+
+@router.post(
+    "/telegram/register",
+    response_model=dict,
+    summary="Create new user with Telegram binding",
+)
+async def telegram_register(
+    chat_id: int,
+    username: Optional[str] = None,
+    first_name: Optional[str] = None,
+    last_name: Optional[str] = None,
+    db: Session = Depends(get_db),
+):
+    """
+    Quick registration for new Telegram user.
+    
+    **Flow:**
+    1. Bot calls this endpoint on /start
+    2. Creates new User with telegram_id
+    3. Returns JWT for immediate API access
+    4. User can update email/password later
+    
+    **Usage in Bot:**
+    ```python
+    result = api.post(
+        "/auth/telegram/register",
+        params={
+            "chat_id": 12345,
+            "username": "john_doe",
+            "first_name": "John",
+            "last_name": "Doe",
+        }
+    )
+    jwt_token = result["jwt_token"]
+    ```
+    """
+    
+    from app.db.models.user import User
+    
+    # Check if user already exists
+    existing = db.query(User).filter_by(telegram_id=chat_id).first()
+    if existing:
+        service = AuthService(db)
+        result = await service.authenticate_telegram_user(chat_id=chat_id)
+        return {
+            **result,
+            "created": False,
+            "message": "User already exists",
+        }
+    
+    # Create new user
+    new_user = User(
+        telegram_id=chat_id,
+        username=username,
+        first_name=first_name,
+        last_name=last_name,
+        is_active=True,
+    )
+    
+    try:
+        db.add(new_user)
+        db.commit()
+        db.refresh(new_user)
+    except Exception as e:
+        db.rollback()
+        logger.error(f"Failed to create user: {e}")
+        raise HTTPException(status_code=400, detail="Failed to create user")
+    
+    # Create JWT
+    service = AuthService(db)
+    result = await service.authenticate_telegram_user(chat_id=chat_id)
+    
+    if result:
+        result["created"] = True
+        result["message"] = f"User created successfully (user_id={new_user.id})"
+    
+    logger.info(f"New Telegram user registered: chat_id={chat_id}, user_id={new_user.id}")
+    
+    return result or {"success": False, "error": "Failed to create user"}
+
+
+@router.post(
+    "/logout",
+    summary="Logout user",
+)
+async def logout(
+    request: Request,
+    db: Session = Depends(get_db),
+):
+    """
+    Revoke session and blacklist tokens.
+    
+    **TODO:** Implement token blacklisting in Redis
+    """
+    
+    user_id = getattr(request.state, "user_id", None)
+    
+    if not user_id:
+        raise HTTPException(status_code=401, detail="Not authenticated")
+    
+    # TODO: Add token to Redis blacklist
+    # redis.setex(f"blacklist:{token}", token_expiry_time, "1")
+    
+    return {"message": "Logged out successfully"}
diff --git a/.history/app/bot/client_20251210221303.py b/.history/app/bot/client_20251210221303.py
new file mode 100644
index 0000000..eb5b858
--- /dev/null
+++ b/.history/app/bot/client_20251210221303.py
@@ -0,0 +1,362 @@
+"""
+Telegram Bot - API-First Client
+All database operations go through API endpoints, not direct SQLAlchemy.
+"""
+import logging
+from datetime import datetime
+from typing import Optional, Dict, Any
+from decimal import Decimal
+import aiohttp
+import time
+from aiogram import Bot, Dispatcher, types, F
+from aiogram.filters import Command
+from aiogram.types import Message
+import redis
+import json
+from app.security.hmac_manager import hmac_manager
+
+
+logger = logging.getLogger(__name__)
+
+
+class TelegramBotClient:
+    """
+    Telegram Bot that communicates exclusively via API calls.
+    
+    Features:
+    - User authentication via JWT tokens stored in Redis
+    - All operations through API (no direct DB access)
+    - Async HTTP requests with aiohttp
+    - Event listening via Redis Streams
+    """
+    
+    def __init__(self, bot_token: str, api_base_url: str, redis_client: redis.Redis):
+        self.bot = Bot(token=bot_token)
+        self.dp = Dispatcher()
+        self.api_base_url = api_base_url
+        self.redis_client = redis_client
+        self.session: Optional[aiohttp.ClientSession] = None
+        
+        # Register handlers
+        self._setup_handlers()
+    
+    def _setup_handlers(self):
+        """Register message handlers"""
+        self.dp.message.register(self.cmd_start, Command("start"))
+        self.dp.message.register(self.cmd_help, Command("help"))
+        self.dp.message.register(self.cmd_balance, Command("balance"))
+        self.dp.message.register(self.cmd_add_transaction, Command("add"))
+    
+    async def start(self):
+        """Start bot polling"""
+        self.session = aiohttp.ClientSession()
+        logger.info("Telegram bot started")
+        
+        # Start polling
+        try:
+            await self.dp.start_polling(self.bot)
+        finally:
+            await self.session.close()
+    
+    # ========== Handler: /start (Binding) ==========
+    async def cmd_start(self, message: Message):
+        """
+        /start - Begin Telegram binding process.
+        
+        **Flow:**
+        1. Check if user already bound (JWT in Redis)
+        2. If not: Generate binding code via API
+        3. Send binding link to user with code
+        
+        **After binding:**
+        - User clicks link and confirms
+        - User's browser calls POST /api/v1/auth/telegram/confirm
+        - Bot calls GET /api/v1/auth/telegram/authenticate?chat_id=XXXX
+        - Bot stores JWT in Redis for future API calls
+        """
+        chat_id = message.chat.id
+        
+        # Check if already bound
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        existing_token = self.redis_client.get(jwt_key)
+        
+        if existing_token:
+            await message.answer(
+                "✅ **You're already connected!**\n\n"
+                "Use /balance to check wallets\n"
+                "Use /add to add transactions\n"
+                "Use /help for all commands",
+                parse_mode="Markdown"
+            )
+            return
+        
+        # Generate binding code
+        try:
+            logger.info(f"Starting binding for chat_id={chat_id}")
+            
+            code_response = await self._api_call(
+                method="POST",
+                endpoint="/api/v1/auth/telegram/start",
+                data={"chat_id": chat_id},
+                use_jwt=False,
+            )
+            
+            binding_code = code_response.get("code")
+            if not binding_code:
+                raise ValueError("No code in response")
+            
+            # Store binding code in Redis for validation
+            # (expires in 10 minutes as per backend TTL)
+            binding_key = f"chat_id:{chat_id}:binding_code"
+            self.redis_client.setex(
+                binding_key,
+                600,
+                json.dumps({"code": binding_code, "created_at": datetime.utcnow().isoformat()})
+            )
+            
+            # Build binding link (replace with actual frontend URL)
+            # Example: https://yourapp.com/auth/telegram/confirm?code=XXX&chat_id=123
+            binding_url = (
+                f"https://your-finance-app.com/auth/telegram/confirm"
+                f"?code={binding_code}&chat_id={chat_id}"
+            )
+            
+            # Send binding link to user
+            await message.answer(
+                f"🔗 **Click to bind your account:**\n\n"
+                f"[📱 Open Account Binding]({binding_url})\n\n"
+                f"⏱ Code expires in 10 minutes\n\n"
+                f"❓ Already have an account? Just log in and click the link.",
+                parse_mode="Markdown",
+                disable_web_page_preview=True,
+            )
+            
+            logger.info(f"Binding code sent to chat_id={chat_id}")
+            
+        except Exception as e:
+            logger.error(f"Binding start error: {e}", exc_info=True)
+            await message.answer("❌ Could not start binding. Try again later.")
+    
+    # ========== Handler: /balance ==========
+    async def cmd_balance(self, message: Message):
+        """
+        /balance - Show wallet balances.
+        
+        Requires:
+        - User must be bound (JWT token in Redis)
+        - API call with JWT auth
+        """
+        chat_id = message.chat.id
+        
+        # Get JWT token
+        jwt_token = self._get_user_jwt(chat_id)
+        if not jwt_token:
+            await message.answer("❌ Not connected. Use /start to bind your account.")
+            return
+        
+        try:
+            # Call API: GET /api/v1/wallets/summary?family_id=1
+            wallets = await self._api_call(
+                method="GET",
+                endpoint="/api/v1/wallets/summary",
+                jwt_token=jwt_token,
+                params={"family_id": 1},  # TODO: Get from context
+            )
+            
+            # Format response
+            response = "💰 **Your Wallets:**\n\n"
+            for wallet in wallets:
+                response += f"📊 {wallet['name']}: ${wallet['balance']}\n"
+            
+            await message.answer(response, parse_mode="Markdown")
+        
+        except Exception as e:
+            logger.error(f"Balance fetch error: {e}")
+            await message.answer("❌ Could not fetch balance. Try again later.")
+    
+    # ========== Handler: /add (Create Transaction) ==========
+    async def cmd_add_transaction(self, message: Message):
+        """
+        /add - Create new transaction (interactive).
+        
+        Flow:
+        1. Ask for amount
+        2. Ask for category
+        3. Ask for wallet (from/to)
+        4. Create transaction via API
+        """
+        
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            await message.answer("❌ Not connected. Use /start first.")
+            return
+        
+        # Store conversation state in Redis
+        state_key = f"chat_id:{chat_id}:state"
+        self.redis_client.setex(state_key, 300, json.dumps({
+            "action": "add_transaction",
+            "step": 1,  # Waiting for amount
+        }))
+        
+        await message.answer("💵 How much?\n\nEnter amount (e.g., 50.00)")
+    
+    async def handle_transaction_input(self, message: Message, state: Dict[str, Any]):
+        """Handle transaction creation in steps"""
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        step = state.get("step", 1)
+        
+        if step == 1:
+            # Amount entered
+            try:
+                amount = Decimal(message.text)
+            except:
+                await message.answer("❌ Invalid amount. Try again.")
+                return
+            
+            state["amount"] = float(amount)
+            state["step"] = 2
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("📂 Which category?\n\n/food /transport /other")
+        
+        elif step == 2:
+            # Category selected
+            state["category"] = message.text
+            state["step"] = 3
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("💬 Any notes?\n\n(or /skip)")
+        
+        elif step == 3:
+            # Notes entered (or skipped)
+            state["notes"] = message.text if message.text != "/skip" else ""
+            
+            # Create transaction via API
+            try:
+                result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/transactions",
+                    jwt_token=jwt_token,
+                    data={
+                        "family_id": 1,
+                        "from_wallet_id": 10,
+                        "amount": state["amount"],
+                        "category_id": 5,  # TODO: Map category
+                        "description": state["category"],
+                        "notes": state["notes"],
+                    }
+                )
+                
+                tx_id = result.get("id")
+                await message.answer(f"✅ Transaction #{tx_id} created!")
+            
+            except Exception as e:
+                logger.error(f"Transaction creation error: {e}")
+                await message.answer("❌ Creation failed. Try again.")
+            
+            finally:
+                # Clean up state
+                self.redis_client.delete(f"chat_id:{chat_id}:state")
+    
+    # ========== Handler: /help ==========
+    async def cmd_help(self, message: Message):
+        """Show available commands"""
+        help_text = """
+🤖 **Finance Bot Commands:**
+
+/start - Bind your Telegram account
+/balance - Show wallet balances
+/add - Add new transaction
+/reports - View reports (daily/weekly/monthly)
+/help - This message
+"""
+        await message.answer(help_text, parse_mode="Markdown")
+    
+    # ========== API Communication Methods ==========
+    async def _api_call(
+        self,
+        method: str,
+        endpoint: str,
+        data: Dict = None,
+        params: Dict = None,
+        jwt_token: Optional[str] = None,
+        use_jwt: bool = True,
+    ) -> Dict[str, Any]:
+        """
+        Make HTTP request to API with proper auth headers.
+        
+        Headers:
+        - Authorization: Bearer <jwt_token>
+        - X-Client-Id: telegram_bot
+        - X-Signature: HMAC_SHA256(...)
+        - X-Timestamp: unix timestamp
+        """
+        
+        if not self.session:
+            raise RuntimeError("Session not initialized")
+        
+        # Build headers
+        headers = {
+            "X-Client-Id": "telegram_bot",
+            "Content-Type": "application/json",
+        }
+        
+        # Add JWT if provided
+        if use_jwt and jwt_token:
+            headers["Authorization"] = f"Bearer {jwt_token}"
+        
+        # Add HMAC signature
+        timestamp = int(time.time())
+        headers["X-Timestamp"] = str(timestamp)
+        
+        signature = hmac_manager.create_signature(
+            method=method,
+            endpoint=endpoint,
+            timestamp=timestamp,
+            body=data,
+        )
+        headers["X-Signature"] = signature
+        
+        # Make request
+        url = f"{self.api_base_url}{endpoint}"
+        
+        async with self.session.request(
+            method=method,
+            url=url,
+            json=data,
+            params=params,
+            headers=headers,
+        ) as response:
+            if response.status >= 400:
+                error_text = await response.text()
+                raise Exception(f"API error {response.status}: {error_text}")
+            
+            return await response.json()
+    
+    def _get_user_jwt(self, chat_id: int) -> Optional[str]:
+        """Get JWT token for chat_id from Redis"""
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        token = self.redis_client.get(jwt_key)
+        return token.decode() if token else None
+    
+    async def send_notification(self, chat_id: int, message: str):
+        """Send notification to user"""
+        try:
+            await self.bot.send_message(chat_id=chat_id, text=message)
+        except Exception as e:
+            logger.error(f"Failed to send notification to {chat_id}: {e}")
+
+
+# Bot factory
+async def create_telegram_bot(
+    bot_token: str,
+    api_base_url: str,
+    redis_client: redis.Redis,
+) -> TelegramBotClient:
+    """Create and start Telegram bot"""
+    bot = TelegramBotClient(bot_token, api_base_url, redis_client)
+    return bot
diff --git a/.history/app/bot/client_20251210221313.py b/.history/app/bot/client_20251210221313.py
new file mode 100644
index 0000000..4c60fa9
--- /dev/null
+++ b/.history/app/bot/client_20251210221313.py
@@ -0,0 +1,414 @@
+"""
+Telegram Bot - API-First Client
+All database operations go through API endpoints, not direct SQLAlchemy.
+"""
+import logging
+from datetime import datetime
+from typing import Optional, Dict, Any
+from decimal import Decimal
+import aiohttp
+import time
+from aiogram import Bot, Dispatcher, types, F
+from aiogram.filters import Command
+from aiogram.types import Message
+import redis
+import json
+from app.security.hmac_manager import hmac_manager
+
+
+logger = logging.getLogger(__name__)
+
+
+class TelegramBotClient:
+    """
+    Telegram Bot that communicates exclusively via API calls.
+    
+    Features:
+    - User authentication via JWT tokens stored in Redis
+    - All operations through API (no direct DB access)
+    - Async HTTP requests with aiohttp
+    - Event listening via Redis Streams
+    """
+    
+    def __init__(self, bot_token: str, api_base_url: str, redis_client: redis.Redis):
+        self.bot = Bot(token=bot_token)
+        self.dp = Dispatcher()
+        self.api_base_url = api_base_url
+        self.redis_client = redis_client
+        self.session: Optional[aiohttp.ClientSession] = None
+        
+        # Register handlers
+        self._setup_handlers()
+    
+    def _setup_handlers(self):
+        """Register message handlers"""
+        self.dp.message.register(self.cmd_start, Command("start"))
+        self.dp.message.register(self.cmd_help, Command("help"))
+        self.dp.message.register(self.cmd_balance, Command("balance"))
+        self.dp.message.register(self.cmd_add_transaction, Command("add"))
+    
+    async def start(self):
+        """Start bot polling"""
+        self.session = aiohttp.ClientSession()
+        logger.info("Telegram bot started")
+        
+        # Start polling
+        try:
+            await self.dp.start_polling(self.bot)
+        finally:
+            await self.session.close()
+    
+    # ========== Handler: /start (Binding) ==========
+    async def cmd_start(self, message: Message):
+        """
+        /start - Begin Telegram binding process.
+        
+        **Flow:**
+        1. Check if user already bound (JWT in Redis)
+        2. If not: Generate binding code via API
+        3. Send binding link to user with code
+        
+        **After binding:**
+        - User clicks link and confirms
+        - User's browser calls POST /api/v1/auth/telegram/confirm
+        - Bot calls GET /api/v1/auth/telegram/authenticate?chat_id=XXXX
+        - Bot stores JWT in Redis for future API calls
+        """
+        chat_id = message.chat.id
+        
+        # Check if already bound
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        existing_token = self.redis_client.get(jwt_key)
+        
+        if existing_token:
+            await message.answer(
+                "✅ **You're already connected!**\n\n"
+                "Use /balance to check wallets\n"
+                "Use /add to add transactions\n"
+                "Use /help for all commands",
+                parse_mode="Markdown"
+            )
+            return
+        
+        # Generate binding code
+        try:
+            logger.info(f"Starting binding for chat_id={chat_id}")
+            
+            code_response = await self._api_call(
+                method="POST",
+                endpoint="/api/v1/auth/telegram/start",
+                data={"chat_id": chat_id},
+                use_jwt=False,
+            )
+            
+            binding_code = code_response.get("code")
+            if not binding_code:
+                raise ValueError("No code in response")
+            
+            # Store binding code in Redis for validation
+            # (expires in 10 minutes as per backend TTL)
+            binding_key = f"chat_id:{chat_id}:binding_code"
+            self.redis_client.setex(
+                binding_key,
+                600,
+                json.dumps({"code": binding_code, "created_at": datetime.utcnow().isoformat()})
+            )
+            
+            # Build binding link (replace with actual frontend URL)
+            # Example: https://yourapp.com/auth/telegram/confirm?code=XXX&chat_id=123
+            binding_url = (
+                f"https://your-finance-app.com/auth/telegram/confirm"
+                f"?code={binding_code}&chat_id={chat_id}"
+            )
+            
+            # Send binding link to user
+            await message.answer(
+                f"🔗 **Click to bind your account:**\n\n"
+                f"[📱 Open Account Binding]({binding_url})\n\n"
+                f"⏱ Code expires in 10 minutes\n\n"
+                f"❓ Already have an account? Just log in and click the link.",
+                parse_mode="Markdown",
+                disable_web_page_preview=True,
+            )
+            
+            logger.info(f"Binding code sent to chat_id={chat_id}")
+            
+        except Exception as e:
+            logger.error(f"Binding start error: {e}", exc_info=True)
+            await message.answer("❌ Could not start binding. Try again later.")
+    
+    # ========== Handler: /balance ==========
+    async def cmd_balance(self, message: Message):
+        """
+        /balance - Show wallet balances.
+        
+        **Requires:**
+        - User must be bound (JWT token in Redis)
+        - JWT obtained via binding confirmation
+        - API call with JWT auth
+        
+        **Try:**
+        Use /start to bind your account first
+        """
+        chat_id = message.chat.id
+        
+        # Get JWT token from Redis
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            # Try to authenticate if user exists
+            try:
+                auth_result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/auth/telegram/authenticate",
+                    params={"chat_id": chat_id},
+                    use_jwt=False,
+                )
+                
+                if auth_result and auth_result.get("jwt_token"):
+                    jwt_token = auth_result["jwt_token"]
+                    
+                    # Store in Redis for future use
+                    self.redis_client.setex(
+                        f"chat_id:{chat_id}:jwt",
+                        86400 * 30,  # 30 days
+                        jwt_token
+                    )
+                    
+                    logger.info(f"JWT obtained for chat_id={chat_id}")
+                    
+            except Exception as e:
+                logger.warning(f"Could not authenticate user: {e}")
+        
+        if not jwt_token:
+            await message.answer(
+                "❌ Not connected yet\n\n"
+                "Use /start to bind your Telegram account first",
+                parse_mode="Markdown"
+            )
+            return
+        
+        try:
+            # Call API: GET /api/v1/accounts?family_id=1
+            accounts_response = await self._api_call(
+                method="GET",
+                endpoint="/api/v1/accounts",
+                jwt_token=jwt_token,
+                params={"family_id": 1},  # TODO: Get from user context
+                use_jwt=True,
+            )
+            
+            accounts = accounts_response if isinstance(accounts_response, list) else accounts_response.get("accounts", [])
+            
+            if not accounts:
+                await message.answer(
+                    "💰 No accounts found\n\n"
+                    "Contact support to set up your first account",
+                    parse_mode="Markdown"
+                )
+                return
+            
+            # Format response
+            response = "💰 **Your Accounts:**\n\n"
+            for account in accounts[:10]:  # Limit to 10
+                balance = account.get("balance", 0)
+                currency = account.get("currency", "USD")
+                response += f"📊 {account.get('name', 'Account')}: {balance} {currency}\n"
+            
+            await message.answer(response, parse_mode="Markdown")
+            logger.info(f"Balance shown for chat_id={chat_id}")
+        
+        except Exception as e:
+            logger.error(f"Balance fetch error for {chat_id}: {e}", exc_info=True)
+            await message.answer(
+                "❌ Could not fetch balance\n\n"
+                "Try again later or contact support",
+                parse_mode="Markdown"
+            )
+    
+    # ========== Handler: /add (Create Transaction) ==========
+    async def cmd_add_transaction(self, message: Message):
+        """
+        /add - Create new transaction (interactive).
+        
+        Flow:
+        1. Ask for amount
+        2. Ask for category
+        3. Ask for wallet (from/to)
+        4. Create transaction via API
+        """
+        
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            await message.answer("❌ Not connected. Use /start first.")
+            return
+        
+        # Store conversation state in Redis
+        state_key = f"chat_id:{chat_id}:state"
+        self.redis_client.setex(state_key, 300, json.dumps({
+            "action": "add_transaction",
+            "step": 1,  # Waiting for amount
+        }))
+        
+        await message.answer("💵 How much?\n\nEnter amount (e.g., 50.00)")
+    
+    async def handle_transaction_input(self, message: Message, state: Dict[str, Any]):
+        """Handle transaction creation in steps"""
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        step = state.get("step", 1)
+        
+        if step == 1:
+            # Amount entered
+            try:
+                amount = Decimal(message.text)
+            except:
+                await message.answer("❌ Invalid amount. Try again.")
+                return
+            
+            state["amount"] = float(amount)
+            state["step"] = 2
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("📂 Which category?\n\n/food /transport /other")
+        
+        elif step == 2:
+            # Category selected
+            state["category"] = message.text
+            state["step"] = 3
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("💬 Any notes?\n\n(or /skip)")
+        
+        elif step == 3:
+            # Notes entered (or skipped)
+            state["notes"] = message.text if message.text != "/skip" else ""
+            
+            # Create transaction via API
+            try:
+                result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/transactions",
+                    jwt_token=jwt_token,
+                    data={
+                        "family_id": 1,
+                        "from_wallet_id": 10,
+                        "amount": state["amount"],
+                        "category_id": 5,  # TODO: Map category
+                        "description": state["category"],
+                        "notes": state["notes"],
+                    }
+                )
+                
+                tx_id = result.get("id")
+                await message.answer(f"✅ Transaction #{tx_id} created!")
+            
+            except Exception as e:
+                logger.error(f"Transaction creation error: {e}")
+                await message.answer("❌ Creation failed. Try again.")
+            
+            finally:
+                # Clean up state
+                self.redis_client.delete(f"chat_id:{chat_id}:state")
+    
+    # ========== Handler: /help ==========
+    async def cmd_help(self, message: Message):
+        """Show available commands"""
+        help_text = """
+🤖 **Finance Bot Commands:**
+
+/start - Bind your Telegram account
+/balance - Show wallet balances
+/add - Add new transaction
+/reports - View reports (daily/weekly/monthly)
+/help - This message
+"""
+        await message.answer(help_text, parse_mode="Markdown")
+    
+    # ========== API Communication Methods ==========
+    async def _api_call(
+        self,
+        method: str,
+        endpoint: str,
+        data: Dict = None,
+        params: Dict = None,
+        jwt_token: Optional[str] = None,
+        use_jwt: bool = True,
+    ) -> Dict[str, Any]:
+        """
+        Make HTTP request to API with proper auth headers.
+        
+        Headers:
+        - Authorization: Bearer <jwt_token>
+        - X-Client-Id: telegram_bot
+        - X-Signature: HMAC_SHA256(...)
+        - X-Timestamp: unix timestamp
+        """
+        
+        if not self.session:
+            raise RuntimeError("Session not initialized")
+        
+        # Build headers
+        headers = {
+            "X-Client-Id": "telegram_bot",
+            "Content-Type": "application/json",
+        }
+        
+        # Add JWT if provided
+        if use_jwt and jwt_token:
+            headers["Authorization"] = f"Bearer {jwt_token}"
+        
+        # Add HMAC signature
+        timestamp = int(time.time())
+        headers["X-Timestamp"] = str(timestamp)
+        
+        signature = hmac_manager.create_signature(
+            method=method,
+            endpoint=endpoint,
+            timestamp=timestamp,
+            body=data,
+        )
+        headers["X-Signature"] = signature
+        
+        # Make request
+        url = f"{self.api_base_url}{endpoint}"
+        
+        async with self.session.request(
+            method=method,
+            url=url,
+            json=data,
+            params=params,
+            headers=headers,
+        ) as response:
+            if response.status >= 400:
+                error_text = await response.text()
+                raise Exception(f"API error {response.status}: {error_text}")
+            
+            return await response.json()
+    
+    def _get_user_jwt(self, chat_id: int) -> Optional[str]:
+        """Get JWT token for chat_id from Redis"""
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        token = self.redis_client.get(jwt_key)
+        return token.decode() if token else None
+    
+    async def send_notification(self, chat_id: int, message: str):
+        """Send notification to user"""
+        try:
+            await self.bot.send_message(chat_id=chat_id, text=message)
+        except Exception as e:
+            logger.error(f"Failed to send notification to {chat_id}: {e}")
+
+
+# Bot factory
+async def create_telegram_bot(
+    bot_token: str,
+    api_base_url: str,
+    redis_client: redis.Redis,
+) -> TelegramBotClient:
+    """Create and start Telegram bot"""
+    bot = TelegramBotClient(bot_token, api_base_url, redis_client)
+    return bot
diff --git a/.history/app/bot/client_20251210221319.py b/.history/app/bot/client_20251210221319.py
new file mode 100644
index 0000000..141b9ab
--- /dev/null
+++ b/.history/app/bot/client_20251210221319.py
@@ -0,0 +1,449 @@
+"""
+Telegram Bot - API-First Client
+All database operations go through API endpoints, not direct SQLAlchemy.
+"""
+import logging
+from datetime import datetime
+from typing import Optional, Dict, Any
+from decimal import Decimal
+import aiohttp
+import time
+from aiogram import Bot, Dispatcher, types, F
+from aiogram.filters import Command
+from aiogram.types import Message
+import redis
+import json
+from app.security.hmac_manager import hmac_manager
+
+
+logger = logging.getLogger(__name__)
+
+
+class TelegramBotClient:
+    """
+    Telegram Bot that communicates exclusively via API calls.
+    
+    Features:
+    - User authentication via JWT tokens stored in Redis
+    - All operations through API (no direct DB access)
+    - Async HTTP requests with aiohttp
+    - Event listening via Redis Streams
+    """
+    
+    def __init__(self, bot_token: str, api_base_url: str, redis_client: redis.Redis):
+        self.bot = Bot(token=bot_token)
+        self.dp = Dispatcher()
+        self.api_base_url = api_base_url
+        self.redis_client = redis_client
+        self.session: Optional[aiohttp.ClientSession] = None
+        
+        # Register handlers
+        self._setup_handlers()
+    
+    def _setup_handlers(self):
+        """Register message handlers"""
+        self.dp.message.register(self.cmd_start, Command("start"))
+        self.dp.message.register(self.cmd_help, Command("help"))
+        self.dp.message.register(self.cmd_balance, Command("balance"))
+        self.dp.message.register(self.cmd_add_transaction, Command("add"))
+    
+    async def start(self):
+        """Start bot polling"""
+        self.session = aiohttp.ClientSession()
+        logger.info("Telegram bot started")
+        
+        # Start polling
+        try:
+            await self.dp.start_polling(self.bot)
+        finally:
+            await self.session.close()
+    
+    # ========== Handler: /start (Binding) ==========
+    async def cmd_start(self, message: Message):
+        """
+        /start - Begin Telegram binding process.
+        
+        **Flow:**
+        1. Check if user already bound (JWT in Redis)
+        2. If not: Generate binding code via API
+        3. Send binding link to user with code
+        
+        **After binding:**
+        - User clicks link and confirms
+        - User's browser calls POST /api/v1/auth/telegram/confirm
+        - Bot calls GET /api/v1/auth/telegram/authenticate?chat_id=XXXX
+        - Bot stores JWT in Redis for future API calls
+        """
+        chat_id = message.chat.id
+        
+        # Check if already bound
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        existing_token = self.redis_client.get(jwt_key)
+        
+        if existing_token:
+            await message.answer(
+                "✅ **You're already connected!**\n\n"
+                "Use /balance to check wallets\n"
+                "Use /add to add transactions\n"
+                "Use /help for all commands",
+                parse_mode="Markdown"
+            )
+            return
+        
+        # Generate binding code
+        try:
+            logger.info(f"Starting binding for chat_id={chat_id}")
+            
+            code_response = await self._api_call(
+                method="POST",
+                endpoint="/api/v1/auth/telegram/start",
+                data={"chat_id": chat_id},
+                use_jwt=False,
+            )
+            
+            binding_code = code_response.get("code")
+            if not binding_code:
+                raise ValueError("No code in response")
+            
+            # Store binding code in Redis for validation
+            # (expires in 10 minutes as per backend TTL)
+            binding_key = f"chat_id:{chat_id}:binding_code"
+            self.redis_client.setex(
+                binding_key,
+                600,
+                json.dumps({"code": binding_code, "created_at": datetime.utcnow().isoformat()})
+            )
+            
+            # Build binding link (replace with actual frontend URL)
+            # Example: https://yourapp.com/auth/telegram/confirm?code=XXX&chat_id=123
+            binding_url = (
+                f"https://your-finance-app.com/auth/telegram/confirm"
+                f"?code={binding_code}&chat_id={chat_id}"
+            )
+            
+            # Send binding link to user
+            await message.answer(
+                f"🔗 **Click to bind your account:**\n\n"
+                f"[📱 Open Account Binding]({binding_url})\n\n"
+                f"⏱ Code expires in 10 minutes\n\n"
+                f"❓ Already have an account? Just log in and click the link.",
+                parse_mode="Markdown",
+                disable_web_page_preview=True,
+            )
+            
+            logger.info(f"Binding code sent to chat_id={chat_id}")
+            
+        except Exception as e:
+            logger.error(f"Binding start error: {e}", exc_info=True)
+            await message.answer("❌ Could not start binding. Try again later.")
+    
+    # ========== Handler: /balance ==========
+    async def cmd_balance(self, message: Message):
+        """
+        /balance - Show wallet balances.
+        
+        **Requires:**
+        - User must be bound (JWT token in Redis)
+        - JWT obtained via binding confirmation
+        - API call with JWT auth
+        
+        **Try:**
+        Use /start to bind your account first
+        """
+        chat_id = message.chat.id
+        
+        # Get JWT token from Redis
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            # Try to authenticate if user exists
+            try:
+                auth_result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/auth/telegram/authenticate",
+                    params={"chat_id": chat_id},
+                    use_jwt=False,
+                )
+                
+                if auth_result and auth_result.get("jwt_token"):
+                    jwt_token = auth_result["jwt_token"]
+                    
+                    # Store in Redis for future use
+                    self.redis_client.setex(
+                        f"chat_id:{chat_id}:jwt",
+                        86400 * 30,  # 30 days
+                        jwt_token
+                    )
+                    
+                    logger.info(f"JWT obtained for chat_id={chat_id}")
+                    
+            except Exception as e:
+                logger.warning(f"Could not authenticate user: {e}")
+        
+        if not jwt_token:
+            await message.answer(
+                "❌ Not connected yet\n\n"
+                "Use /start to bind your Telegram account first",
+                parse_mode="Markdown"
+            )
+            return
+        
+        try:
+            # Call API: GET /api/v1/accounts?family_id=1
+            accounts_response = await self._api_call(
+                method="GET",
+                endpoint="/api/v1/accounts",
+                jwt_token=jwt_token,
+                params={"family_id": 1},  # TODO: Get from user context
+                use_jwt=True,
+            )
+            
+            accounts = accounts_response if isinstance(accounts_response, list) else accounts_response.get("accounts", [])
+            
+            if not accounts:
+                await message.answer(
+                    "💰 No accounts found\n\n"
+                    "Contact support to set up your first account",
+                    parse_mode="Markdown"
+                )
+                return
+            
+            # Format response
+            response = "💰 **Your Accounts:**\n\n"
+            for account in accounts[:10]:  # Limit to 10
+                balance = account.get("balance", 0)
+                currency = account.get("currency", "USD")
+                response += f"📊 {account.get('name', 'Account')}: {balance} {currency}\n"
+            
+            await message.answer(response, parse_mode="Markdown")
+            logger.info(f"Balance shown for chat_id={chat_id}")
+        
+        except Exception as e:
+            logger.error(f"Balance fetch error for {chat_id}: {e}", exc_info=True)
+            await message.answer(
+                "❌ Could not fetch balance\n\n"
+                "Try again later or contact support",
+                parse_mode="Markdown"
+            )
+    
+    # ========== Handler: /add (Create Transaction) ==========
+    async def cmd_add_transaction(self, message: Message):
+        """
+        /add - Create new transaction (interactive).
+        
+        Flow:
+        1. Ask for amount
+        2. Ask for category
+        3. Ask for wallet (from/to)
+        4. Create transaction via API
+        """
+        
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            await message.answer("❌ Not connected. Use /start first.")
+            return
+        
+        # Store conversation state in Redis
+        state_key = f"chat_id:{chat_id}:state"
+        self.redis_client.setex(state_key, 300, json.dumps({
+            "action": "add_transaction",
+            "step": 1,  # Waiting for amount
+        }))
+        
+        await message.answer("💵 How much?\n\nEnter amount (e.g., 50.00)")
+    
+    async def handle_transaction_input(self, message: Message, state: Dict[str, Any]):
+        """Handle transaction creation in steps"""
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        step = state.get("step", 1)
+        
+        if step == 1:
+            # Amount entered
+            try:
+                amount = Decimal(message.text)
+            except:
+                await message.answer("❌ Invalid amount. Try again.")
+                return
+            
+            state["amount"] = float(amount)
+            state["step"] = 2
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("📂 Which category?\n\n/food /transport /other")
+        
+        elif step == 2:
+            # Category selected
+            state["category"] = message.text
+            state["step"] = 3
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("💬 Any notes?\n\n(or /skip)")
+        
+        elif step == 3:
+            # Notes entered (or skipped)
+            state["notes"] = message.text if message.text != "/skip" else ""
+            
+            # Create transaction via API
+            try:
+                result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/transactions",
+                    jwt_token=jwt_token,
+                    data={
+                        "family_id": 1,
+                        "from_wallet_id": 10,
+                        "amount": state["amount"],
+                        "category_id": 5,  # TODO: Map category
+                        "description": state["category"],
+                        "notes": state["notes"],
+                    }
+                )
+                
+                tx_id = result.get("id")
+                await message.answer(f"✅ Transaction #{tx_id} created!")
+            
+            except Exception as e:
+                logger.error(f"Transaction creation error: {e}")
+                await message.answer("❌ Creation failed. Try again.")
+            
+            finally:
+                # Clean up state
+                self.redis_client.delete(f"chat_id:{chat_id}:state")
+    
+    # ========== Handler: /help ==========
+    async def cmd_help(self, message: Message):
+        """Show available commands and binding instructions"""
+        chat_id = message.chat.id
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        is_bound = self.redis_client.get(jwt_key) is not None
+        
+        if is_bound:
+            help_text = """🤖 **Finance Bot - Commands:**
+
+🔗 **Account**
+/start - Re-bind account (if needed)
+/balance - Show all account balances
+/settings - Account settings
+
+💰 **Transactions**
+/add - Add new transaction
+/recent - Last 10 transactions
+/category - View by category
+
+📊 **Reports**
+/daily - Daily spending report
+/weekly - Weekly summary
+/monthly - Monthly summary
+
+❓ **Help**
+/help - This message
+"""
+        else:
+            help_text = """🤖 **Finance Bot - Getting Started**
+
+**Step 1: Bind Your Account**
+/start - Click the link to bind your Telegram account
+
+**Step 2: Login**
+Use your email and password on the binding page
+
+**Step 3: Done!**
+- /balance - View your accounts
+- /add - Create transactions
+- /help - See all commands
+
+🔒 **Privacy**
+Your data is encrypted and secure
+Only you can access your accounts
+"""
+        
+        await message.answer(help_text, parse_mode="Markdown")
+    
+    # ========== API Communication Methods ==========
+    async def _api_call(
+        self,
+        method: str,
+        endpoint: str,
+        data: Dict = None,
+        params: Dict = None,
+        jwt_token: Optional[str] = None,
+        use_jwt: bool = True,
+    ) -> Dict[str, Any]:
+        """
+        Make HTTP request to API with proper auth headers.
+        
+        Headers:
+        - Authorization: Bearer <jwt_token>
+        - X-Client-Id: telegram_bot
+        - X-Signature: HMAC_SHA256(...)
+        - X-Timestamp: unix timestamp
+        """
+        
+        if not self.session:
+            raise RuntimeError("Session not initialized")
+        
+        # Build headers
+        headers = {
+            "X-Client-Id": "telegram_bot",
+            "Content-Type": "application/json",
+        }
+        
+        # Add JWT if provided
+        if use_jwt and jwt_token:
+            headers["Authorization"] = f"Bearer {jwt_token}"
+        
+        # Add HMAC signature
+        timestamp = int(time.time())
+        headers["X-Timestamp"] = str(timestamp)
+        
+        signature = hmac_manager.create_signature(
+            method=method,
+            endpoint=endpoint,
+            timestamp=timestamp,
+            body=data,
+        )
+        headers["X-Signature"] = signature
+        
+        # Make request
+        url = f"{self.api_base_url}{endpoint}"
+        
+        async with self.session.request(
+            method=method,
+            url=url,
+            json=data,
+            params=params,
+            headers=headers,
+        ) as response:
+            if response.status >= 400:
+                error_text = await response.text()
+                raise Exception(f"API error {response.status}: {error_text}")
+            
+            return await response.json()
+    
+    def _get_user_jwt(self, chat_id: int) -> Optional[str]:
+        """Get JWT token for chat_id from Redis"""
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        token = self.redis_client.get(jwt_key)
+        return token.decode() if token else None
+    
+    async def send_notification(self, chat_id: int, message: str):
+        """Send notification to user"""
+        try:
+            await self.bot.send_message(chat_id=chat_id, text=message)
+        except Exception as e:
+            logger.error(f"Failed to send notification to {chat_id}: {e}")
+
+
+# Bot factory
+async def create_telegram_bot(
+    bot_token: str,
+    api_base_url: str,
+    redis_client: redis.Redis,
+) -> TelegramBotClient:
+    """Create and start Telegram bot"""
+    bot = TelegramBotClient(bot_token, api_base_url, redis_client)
+    return bot
diff --git a/.history/app/bot/client_20251210221328.py b/.history/app/bot/client_20251210221328.py
new file mode 100644
index 0000000..80dc515
--- /dev/null
+++ b/.history/app/bot/client_20251210221328.py
@@ -0,0 +1,479 @@
+"""
+Telegram Bot - API-First Client
+All database operations go through API endpoints, not direct SQLAlchemy.
+"""
+import logging
+from datetime import datetime
+from typing import Optional, Dict, Any
+from decimal import Decimal
+import aiohttp
+import time
+from aiogram import Bot, Dispatcher, types, F
+from aiogram.filters import Command
+from aiogram.types import Message
+import redis
+import json
+from app.security.hmac_manager import hmac_manager
+
+
+logger = logging.getLogger(__name__)
+
+
+class TelegramBotClient:
+    """
+    Telegram Bot that communicates exclusively via API calls.
+    
+    Features:
+    - User authentication via JWT tokens stored in Redis
+    - All operations through API (no direct DB access)
+    - Async HTTP requests with aiohttp
+    - Event listening via Redis Streams
+    """
+    
+    def __init__(self, bot_token: str, api_base_url: str, redis_client: redis.Redis):
+        self.bot = Bot(token=bot_token)
+        self.dp = Dispatcher()
+        self.api_base_url = api_base_url
+        self.redis_client = redis_client
+        self.session: Optional[aiohttp.ClientSession] = None
+        
+        # Register handlers
+        self._setup_handlers()
+    
+    def _setup_handlers(self):
+        """Register message handlers"""
+        self.dp.message.register(self.cmd_start, Command("start"))
+        self.dp.message.register(self.cmd_help, Command("help"))
+        self.dp.message.register(self.cmd_balance, Command("balance"))
+        self.dp.message.register(self.cmd_add_transaction, Command("add"))
+    
+    async def start(self):
+        """Start bot polling"""
+        self.session = aiohttp.ClientSession()
+        logger.info("Telegram bot started")
+        
+        # Start polling
+        try:
+            await self.dp.start_polling(self.bot)
+        finally:
+            await self.session.close()
+    
+    # ========== Handler: /start (Binding) ==========
+    async def cmd_start(self, message: Message):
+        """
+        /start - Begin Telegram binding process.
+        
+        **Flow:**
+        1. Check if user already bound (JWT in Redis)
+        2. If not: Generate binding code via API
+        3. Send binding link to user with code
+        
+        **After binding:**
+        - User clicks link and confirms
+        - User's browser calls POST /api/v1/auth/telegram/confirm
+        - Bot calls GET /api/v1/auth/telegram/authenticate?chat_id=XXXX
+        - Bot stores JWT in Redis for future API calls
+        """
+        chat_id = message.chat.id
+        
+        # Check if already bound
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        existing_token = self.redis_client.get(jwt_key)
+        
+        if existing_token:
+            await message.answer(
+                "✅ **You're already connected!**\n\n"
+                "Use /balance to check wallets\n"
+                "Use /add to add transactions\n"
+                "Use /help for all commands",
+                parse_mode="Markdown"
+            )
+            return
+        
+        # Generate binding code
+        try:
+            logger.info(f"Starting binding for chat_id={chat_id}")
+            
+            code_response = await self._api_call(
+                method="POST",
+                endpoint="/api/v1/auth/telegram/start",
+                data={"chat_id": chat_id},
+                use_jwt=False,
+            )
+            
+            binding_code = code_response.get("code")
+            if not binding_code:
+                raise ValueError("No code in response")
+            
+            # Store binding code in Redis for validation
+            # (expires in 10 minutes as per backend TTL)
+            binding_key = f"chat_id:{chat_id}:binding_code"
+            self.redis_client.setex(
+                binding_key,
+                600,
+                json.dumps({"code": binding_code, "created_at": datetime.utcnow().isoformat()})
+            )
+            
+            # Build binding link (replace with actual frontend URL)
+            # Example: https://yourapp.com/auth/telegram/confirm?code=XXX&chat_id=123
+            binding_url = (
+                f"https://your-finance-app.com/auth/telegram/confirm"
+                f"?code={binding_code}&chat_id={chat_id}"
+            )
+            
+            # Send binding link to user
+            await message.answer(
+                f"🔗 **Click to bind your account:**\n\n"
+                f"[📱 Open Account Binding]({binding_url})\n\n"
+                f"⏱ Code expires in 10 minutes\n\n"
+                f"❓ Already have an account? Just log in and click the link.",
+                parse_mode="Markdown",
+                disable_web_page_preview=True,
+            )
+            
+            logger.info(f"Binding code sent to chat_id={chat_id}")
+            
+        except Exception as e:
+            logger.error(f"Binding start error: {e}", exc_info=True)
+            await message.answer("❌ Could not start binding. Try again later.")
+    
+    # ========== Handler: /balance ==========
+    async def cmd_balance(self, message: Message):
+        """
+        /balance - Show wallet balances.
+        
+        **Requires:**
+        - User must be bound (JWT token in Redis)
+        - JWT obtained via binding confirmation
+        - API call with JWT auth
+        
+        **Try:**
+        Use /start to bind your account first
+        """
+        chat_id = message.chat.id
+        
+        # Get JWT token from Redis
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            # Try to authenticate if user exists
+            try:
+                auth_result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/auth/telegram/authenticate",
+                    params={"chat_id": chat_id},
+                    use_jwt=False,
+                )
+                
+                if auth_result and auth_result.get("jwt_token"):
+                    jwt_token = auth_result["jwt_token"]
+                    
+                    # Store in Redis for future use
+                    self.redis_client.setex(
+                        f"chat_id:{chat_id}:jwt",
+                        86400 * 30,  # 30 days
+                        jwt_token
+                    )
+                    
+                    logger.info(f"JWT obtained for chat_id={chat_id}")
+                    
+            except Exception as e:
+                logger.warning(f"Could not authenticate user: {e}")
+        
+        if not jwt_token:
+            await message.answer(
+                "❌ Not connected yet\n\n"
+                "Use /start to bind your Telegram account first",
+                parse_mode="Markdown"
+            )
+            return
+        
+        try:
+            # Call API: GET /api/v1/accounts?family_id=1
+            accounts_response = await self._api_call(
+                method="GET",
+                endpoint="/api/v1/accounts",
+                jwt_token=jwt_token,
+                params={"family_id": 1},  # TODO: Get from user context
+                use_jwt=True,
+            )
+            
+            accounts = accounts_response if isinstance(accounts_response, list) else accounts_response.get("accounts", [])
+            
+            if not accounts:
+                await message.answer(
+                    "💰 No accounts found\n\n"
+                    "Contact support to set up your first account",
+                    parse_mode="Markdown"
+                )
+                return
+            
+            # Format response
+            response = "💰 **Your Accounts:**\n\n"
+            for account in accounts[:10]:  # Limit to 10
+                balance = account.get("balance", 0)
+                currency = account.get("currency", "USD")
+                response += f"📊 {account.get('name', 'Account')}: {balance} {currency}\n"
+            
+            await message.answer(response, parse_mode="Markdown")
+            logger.info(f"Balance shown for chat_id={chat_id}")
+        
+        except Exception as e:
+            logger.error(f"Balance fetch error for {chat_id}: {e}", exc_info=True)
+            await message.answer(
+                "❌ Could not fetch balance\n\n"
+                "Try again later or contact support",
+                parse_mode="Markdown"
+            )
+    
+    # ========== Handler: /add (Create Transaction) ==========
+    async def cmd_add_transaction(self, message: Message):
+        """
+        /add - Create new transaction (interactive).
+        
+        Flow:
+        1. Ask for amount
+        2. Ask for category
+        3. Ask for wallet (from/to)
+        4. Create transaction via API
+        """
+        
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            await message.answer("❌ Not connected. Use /start first.")
+            return
+        
+        # Store conversation state in Redis
+        state_key = f"chat_id:{chat_id}:state"
+        self.redis_client.setex(state_key, 300, json.dumps({
+            "action": "add_transaction",
+            "step": 1,  # Waiting for amount
+        }))
+        
+        await message.answer("💵 How much?\n\nEnter amount (e.g., 50.00)")
+    
+    async def handle_transaction_input(self, message: Message, state: Dict[str, Any]):
+        """Handle transaction creation in steps"""
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        step = state.get("step", 1)
+        
+        if step == 1:
+            # Amount entered
+            try:
+                amount = Decimal(message.text)
+            except:
+                await message.answer("❌ Invalid amount. Try again.")
+                return
+            
+            state["amount"] = float(amount)
+            state["step"] = 2
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("📂 Which category?\n\n/food /transport /other")
+        
+        elif step == 2:
+            # Category selected
+            state["category"] = message.text
+            state["step"] = 3
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("💬 Any notes?\n\n(or /skip)")
+        
+        elif step == 3:
+            # Notes entered (or skipped)
+            state["notes"] = message.text if message.text != "/skip" else ""
+            
+            # Create transaction via API
+            try:
+                result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/transactions",
+                    jwt_token=jwt_token,
+                    data={
+                        "family_id": 1,
+                        "from_wallet_id": 10,
+                        "amount": state["amount"],
+                        "category_id": 5,  # TODO: Map category
+                        "description": state["category"],
+                        "notes": state["notes"],
+                    }
+                )
+                
+                tx_id = result.get("id")
+                await message.answer(f"✅ Transaction #{tx_id} created!")
+            
+            except Exception as e:
+                logger.error(f"Transaction creation error: {e}")
+                await message.answer("❌ Creation failed. Try again.")
+            
+            finally:
+                # Clean up state
+                self.redis_client.delete(f"chat_id:{chat_id}:state")
+    
+    # ========== Handler: /help ==========
+    async def cmd_help(self, message: Message):
+        """Show available commands and binding instructions"""
+        chat_id = message.chat.id
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        is_bound = self.redis_client.get(jwt_key) is not None
+        
+        if is_bound:
+            help_text = """🤖 **Finance Bot - Commands:**
+
+🔗 **Account**
+/start - Re-bind account (if needed)
+/balance - Show all account balances
+/settings - Account settings
+
+💰 **Transactions**
+/add - Add new transaction
+/recent - Last 10 transactions
+/category - View by category
+
+📊 **Reports**
+/daily - Daily spending report
+/weekly - Weekly summary
+/monthly - Monthly summary
+
+❓ **Help**
+/help - This message
+"""
+        else:
+            help_text = """🤖 **Finance Bot - Getting Started**
+
+**Step 1: Bind Your Account**
+/start - Click the link to bind your Telegram account
+
+**Step 2: Login**
+Use your email and password on the binding page
+
+**Step 3: Done!**
+- /balance - View your accounts
+- /add - Create transactions
+- /help - See all commands
+
+🔒 **Privacy**
+Your data is encrypted and secure
+Only you can access your accounts
+"""
+        
+        await message.answer(help_text, parse_mode="Markdown")
+    
+    # ========== API Communication Methods ==========
+    async def _api_call(
+        self,
+        method: str,
+        endpoint: str,
+        data: Dict = None,
+        params: Dict = None,
+        jwt_token: Optional[str] = None,
+        use_jwt: bool = True,
+    ) -> Dict[str, Any]:
+        """
+        Make HTTP request to API with proper authentication headers.
+        
+        **Headers:**
+        - Authorization: Bearer <jwt_token> (if use_jwt=True)
+        - X-Client-Id: telegram_bot
+        - X-Signature: HMAC_SHA256(method + endpoint + timestamp + body)
+        - X-Timestamp: unix timestamp
+        
+        **Auth Flow:**
+        1. For public endpoints (binding): use_jwt=False, no Authorization header
+        2. For user endpoints: use_jwt=True, pass jwt_token
+        3. All calls include HMAC signature for integrity
+        
+        **Raises:**
+        - Exception: API error with status code and message
+        """
+        
+        if not self.session:
+            raise RuntimeError("Session not initialized")
+        
+        # Build URL
+        url = f"{self.api_base_url}{endpoint}"
+        
+        # Build headers
+        headers = {
+            "X-Client-Id": "telegram_bot",
+            "Content-Type": "application/json",
+        }
+        
+        # Add JWT if provided and requested
+        if use_jwt and jwt_token:
+            headers["Authorization"] = f"Bearer {jwt_token}"
+        
+        # Add HMAC signature for integrity verification
+        timestamp = int(time.time())
+        headers["X-Timestamp"] = str(timestamp)
+        
+        signature = hmac_manager.create_signature(
+            method=method,
+            endpoint=endpoint,
+            timestamp=timestamp,
+            body=data,
+        )
+        headers["X-Signature"] = signature
+        
+        # Make request
+        try:
+            async with self.session.request(
+                method=method,
+                url=url,
+                json=data,
+                params=params,
+                headers=headers,
+                timeout=aiohttp.ClientTimeout(total=10),
+            ) as response:
+                response_text = await response.text()
+                
+                if response.status >= 400:
+                    logger.error(
+                        f"API error {response.status}: {endpoint}\n"
+                        f"Response: {response_text[:500]}"
+                    )
+                    raise Exception(
+                        f"API error {response.status}: {response_text[:200]}"
+                    )
+                
+                # Parse JSON response
+                try:
+                    return json.loads(response_text)
+                except json.JSONDecodeError:
+                    logger.warning(f"Invalid JSON response from {endpoint}: {response_text}")
+                    return {"data": response_text}
+                    
+        except asyncio.TimeoutError:
+            logger.error(f"API timeout: {endpoint}")
+            raise Exception("Request timeout")
+        except Exception as e:
+            logger.error(f"API call failed ({method} {endpoint}): {e}")
+            raise
+    
+    def _get_user_jwt(self, chat_id: int) -> Optional[str]:
+        """Get JWT token for chat_id from Redis"""
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        token = self.redis_client.get(jwt_key)
+        return token.decode() if token else None
+    
+    async def send_notification(self, chat_id: int, message: str):
+        """Send notification to user"""
+        try:
+            await self.bot.send_message(chat_id=chat_id, text=message)
+        except Exception as e:
+            logger.error(f"Failed to send notification to {chat_id}: {e}")
+
+
+# Bot factory
+async def create_telegram_bot(
+    bot_token: str,
+    api_base_url: str,
+    redis_client: redis.Redis,
+) -> TelegramBotClient:
+    """Create and start Telegram bot"""
+    bot = TelegramBotClient(bot_token, api_base_url, redis_client)
+    return bot
diff --git a/.history/app/bot/client_20251210221338.py b/.history/app/bot/client_20251210221338.py
new file mode 100644
index 0000000..7643940
--- /dev/null
+++ b/.history/app/bot/client_20251210221338.py
@@ -0,0 +1,480 @@
+"""
+Telegram Bot - API-First Client
+All database operations go through API endpoints, not direct SQLAlchemy.
+"""
+import logging
+from datetime import datetime
+from typing import Optional, Dict, Any
+from decimal import Decimal
+import aiohttp
+import time
+import asyncio
+import json
+import redis
+from aiogram import Bot, Dispatcher, types, F
+from aiogram.filters import Command
+from aiogram.types import Message
+from app.security.hmac_manager import hmac_manager
+
+
+logger = logging.getLogger(__name__)
+
+
+class TelegramBotClient:
+    """
+    Telegram Bot that communicates exclusively via API calls.
+    
+    Features:
+    - User authentication via JWT tokens stored in Redis
+    - All operations through API (no direct DB access)
+    - Async HTTP requests with aiohttp
+    - Event listening via Redis Streams
+    """
+    
+    def __init__(self, bot_token: str, api_base_url: str, redis_client: redis.Redis):
+        self.bot = Bot(token=bot_token)
+        self.dp = Dispatcher()
+        self.api_base_url = api_base_url
+        self.redis_client = redis_client
+        self.session: Optional[aiohttp.ClientSession] = None
+        
+        # Register handlers
+        self._setup_handlers()
+    
+    def _setup_handlers(self):
+        """Register message handlers"""
+        self.dp.message.register(self.cmd_start, Command("start"))
+        self.dp.message.register(self.cmd_help, Command("help"))
+        self.dp.message.register(self.cmd_balance, Command("balance"))
+        self.dp.message.register(self.cmd_add_transaction, Command("add"))
+    
+    async def start(self):
+        """Start bot polling"""
+        self.session = aiohttp.ClientSession()
+        logger.info("Telegram bot started")
+        
+        # Start polling
+        try:
+            await self.dp.start_polling(self.bot)
+        finally:
+            await self.session.close()
+    
+    # ========== Handler: /start (Binding) ==========
+    async def cmd_start(self, message: Message):
+        """
+        /start - Begin Telegram binding process.
+        
+        **Flow:**
+        1. Check if user already bound (JWT in Redis)
+        2. If not: Generate binding code via API
+        3. Send binding link to user with code
+        
+        **After binding:**
+        - User clicks link and confirms
+        - User's browser calls POST /api/v1/auth/telegram/confirm
+        - Bot calls GET /api/v1/auth/telegram/authenticate?chat_id=XXXX
+        - Bot stores JWT in Redis for future API calls
+        """
+        chat_id = message.chat.id
+        
+        # Check if already bound
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        existing_token = self.redis_client.get(jwt_key)
+        
+        if existing_token:
+            await message.answer(
+                "✅ **You're already connected!**\n\n"
+                "Use /balance to check wallets\n"
+                "Use /add to add transactions\n"
+                "Use /help for all commands",
+                parse_mode="Markdown"
+            )
+            return
+        
+        # Generate binding code
+        try:
+            logger.info(f"Starting binding for chat_id={chat_id}")
+            
+            code_response = await self._api_call(
+                method="POST",
+                endpoint="/api/v1/auth/telegram/start",
+                data={"chat_id": chat_id},
+                use_jwt=False,
+            )
+            
+            binding_code = code_response.get("code")
+            if not binding_code:
+                raise ValueError("No code in response")
+            
+            # Store binding code in Redis for validation
+            # (expires in 10 minutes as per backend TTL)
+            binding_key = f"chat_id:{chat_id}:binding_code"
+            self.redis_client.setex(
+                binding_key,
+                600,
+                json.dumps({"code": binding_code, "created_at": datetime.utcnow().isoformat()})
+            )
+            
+            # Build binding link (replace with actual frontend URL)
+            # Example: https://yourapp.com/auth/telegram/confirm?code=XXX&chat_id=123
+            binding_url = (
+                f"https://your-finance-app.com/auth/telegram/confirm"
+                f"?code={binding_code}&chat_id={chat_id}"
+            )
+            
+            # Send binding link to user
+            await message.answer(
+                f"🔗 **Click to bind your account:**\n\n"
+                f"[📱 Open Account Binding]({binding_url})\n\n"
+                f"⏱ Code expires in 10 minutes\n\n"
+                f"❓ Already have an account? Just log in and click the link.",
+                parse_mode="Markdown",
+                disable_web_page_preview=True,
+            )
+            
+            logger.info(f"Binding code sent to chat_id={chat_id}")
+            
+        except Exception as e:
+            logger.error(f"Binding start error: {e}", exc_info=True)
+            await message.answer("❌ Could not start binding. Try again later.")
+    
+    # ========== Handler: /balance ==========
+    async def cmd_balance(self, message: Message):
+        """
+        /balance - Show wallet balances.
+        
+        **Requires:**
+        - User must be bound (JWT token in Redis)
+        - JWT obtained via binding confirmation
+        - API call with JWT auth
+        
+        **Try:**
+        Use /start to bind your account first
+        """
+        chat_id = message.chat.id
+        
+        # Get JWT token from Redis
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            # Try to authenticate if user exists
+            try:
+                auth_result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/auth/telegram/authenticate",
+                    params={"chat_id": chat_id},
+                    use_jwt=False,
+                )
+                
+                if auth_result and auth_result.get("jwt_token"):
+                    jwt_token = auth_result["jwt_token"]
+                    
+                    # Store in Redis for future use
+                    self.redis_client.setex(
+                        f"chat_id:{chat_id}:jwt",
+                        86400 * 30,  # 30 days
+                        jwt_token
+                    )
+                    
+                    logger.info(f"JWT obtained for chat_id={chat_id}")
+                    
+            except Exception as e:
+                logger.warning(f"Could not authenticate user: {e}")
+        
+        if not jwt_token:
+            await message.answer(
+                "❌ Not connected yet\n\n"
+                "Use /start to bind your Telegram account first",
+                parse_mode="Markdown"
+            )
+            return
+        
+        try:
+            # Call API: GET /api/v1/accounts?family_id=1
+            accounts_response = await self._api_call(
+                method="GET",
+                endpoint="/api/v1/accounts",
+                jwt_token=jwt_token,
+                params={"family_id": 1},  # TODO: Get from user context
+                use_jwt=True,
+            )
+            
+            accounts = accounts_response if isinstance(accounts_response, list) else accounts_response.get("accounts", [])
+            
+            if not accounts:
+                await message.answer(
+                    "💰 No accounts found\n\n"
+                    "Contact support to set up your first account",
+                    parse_mode="Markdown"
+                )
+                return
+            
+            # Format response
+            response = "💰 **Your Accounts:**\n\n"
+            for account in accounts[:10]:  # Limit to 10
+                balance = account.get("balance", 0)
+                currency = account.get("currency", "USD")
+                response += f"📊 {account.get('name', 'Account')}: {balance} {currency}\n"
+            
+            await message.answer(response, parse_mode="Markdown")
+            logger.info(f"Balance shown for chat_id={chat_id}")
+        
+        except Exception as e:
+            logger.error(f"Balance fetch error for {chat_id}: {e}", exc_info=True)
+            await message.answer(
+                "❌ Could not fetch balance\n\n"
+                "Try again later or contact support",
+                parse_mode="Markdown"
+            )
+    
+    # ========== Handler: /add (Create Transaction) ==========
+    async def cmd_add_transaction(self, message: Message):
+        """
+        /add - Create new transaction (interactive).
+        
+        Flow:
+        1. Ask for amount
+        2. Ask for category
+        3. Ask for wallet (from/to)
+        4. Create transaction via API
+        """
+        
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            await message.answer("❌ Not connected. Use /start first.")
+            return
+        
+        # Store conversation state in Redis
+        state_key = f"chat_id:{chat_id}:state"
+        self.redis_client.setex(state_key, 300, json.dumps({
+            "action": "add_transaction",
+            "step": 1,  # Waiting for amount
+        }))
+        
+        await message.answer("💵 How much?\n\nEnter amount (e.g., 50.00)")
+    
+    async def handle_transaction_input(self, message: Message, state: Dict[str, Any]):
+        """Handle transaction creation in steps"""
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        step = state.get("step", 1)
+        
+        if step == 1:
+            # Amount entered
+            try:
+                amount = Decimal(message.text)
+            except:
+                await message.answer("❌ Invalid amount. Try again.")
+                return
+            
+            state["amount"] = float(amount)
+            state["step"] = 2
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("📂 Which category?\n\n/food /transport /other")
+        
+        elif step == 2:
+            # Category selected
+            state["category"] = message.text
+            state["step"] = 3
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("💬 Any notes?\n\n(or /skip)")
+        
+        elif step == 3:
+            # Notes entered (or skipped)
+            state["notes"] = message.text if message.text != "/skip" else ""
+            
+            # Create transaction via API
+            try:
+                result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/transactions",
+                    jwt_token=jwt_token,
+                    data={
+                        "family_id": 1,
+                        "from_wallet_id": 10,
+                        "amount": state["amount"],
+                        "category_id": 5,  # TODO: Map category
+                        "description": state["category"],
+                        "notes": state["notes"],
+                    }
+                )
+                
+                tx_id = result.get("id")
+                await message.answer(f"✅ Transaction #{tx_id} created!")
+            
+            except Exception as e:
+                logger.error(f"Transaction creation error: {e}")
+                await message.answer("❌ Creation failed. Try again.")
+            
+            finally:
+                # Clean up state
+                self.redis_client.delete(f"chat_id:{chat_id}:state")
+    
+    # ========== Handler: /help ==========
+    async def cmd_help(self, message: Message):
+        """Show available commands and binding instructions"""
+        chat_id = message.chat.id
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        is_bound = self.redis_client.get(jwt_key) is not None
+        
+        if is_bound:
+            help_text = """🤖 **Finance Bot - Commands:**
+
+🔗 **Account**
+/start - Re-bind account (if needed)
+/balance - Show all account balances
+/settings - Account settings
+
+💰 **Transactions**
+/add - Add new transaction
+/recent - Last 10 transactions
+/category - View by category
+
+📊 **Reports**
+/daily - Daily spending report
+/weekly - Weekly summary
+/monthly - Monthly summary
+
+❓ **Help**
+/help - This message
+"""
+        else:
+            help_text = """🤖 **Finance Bot - Getting Started**
+
+**Step 1: Bind Your Account**
+/start - Click the link to bind your Telegram account
+
+**Step 2: Login**
+Use your email and password on the binding page
+
+**Step 3: Done!**
+- /balance - View your accounts
+- /add - Create transactions
+- /help - See all commands
+
+🔒 **Privacy**
+Your data is encrypted and secure
+Only you can access your accounts
+"""
+        
+        await message.answer(help_text, parse_mode="Markdown")
+    
+    # ========== API Communication Methods ==========
+    async def _api_call(
+        self,
+        method: str,
+        endpoint: str,
+        data: Dict = None,
+        params: Dict = None,
+        jwt_token: Optional[str] = None,
+        use_jwt: bool = True,
+    ) -> Dict[str, Any]:
+        """
+        Make HTTP request to API with proper authentication headers.
+        
+        **Headers:**
+        - Authorization: Bearer <jwt_token> (if use_jwt=True)
+        - X-Client-Id: telegram_bot
+        - X-Signature: HMAC_SHA256(method + endpoint + timestamp + body)
+        - X-Timestamp: unix timestamp
+        
+        **Auth Flow:**
+        1. For public endpoints (binding): use_jwt=False, no Authorization header
+        2. For user endpoints: use_jwt=True, pass jwt_token
+        3. All calls include HMAC signature for integrity
+        
+        **Raises:**
+        - Exception: API error with status code and message
+        """
+        
+        if not self.session:
+            raise RuntimeError("Session not initialized")
+        
+        # Build URL
+        url = f"{self.api_base_url}{endpoint}"
+        
+        # Build headers
+        headers = {
+            "X-Client-Id": "telegram_bot",
+            "Content-Type": "application/json",
+        }
+        
+        # Add JWT if provided and requested
+        if use_jwt and jwt_token:
+            headers["Authorization"] = f"Bearer {jwt_token}"
+        
+        # Add HMAC signature for integrity verification
+        timestamp = int(time.time())
+        headers["X-Timestamp"] = str(timestamp)
+        
+        signature = hmac_manager.create_signature(
+            method=method,
+            endpoint=endpoint,
+            timestamp=timestamp,
+            body=data,
+        )
+        headers["X-Signature"] = signature
+        
+        # Make request
+        try:
+            async with self.session.request(
+                method=method,
+                url=url,
+                json=data,
+                params=params,
+                headers=headers,
+                timeout=aiohttp.ClientTimeout(total=10),
+            ) as response:
+                response_text = await response.text()
+                
+                if response.status >= 400:
+                    logger.error(
+                        f"API error {response.status}: {endpoint}\n"
+                        f"Response: {response_text[:500]}"
+                    )
+                    raise Exception(
+                        f"API error {response.status}: {response_text[:200]}"
+                    )
+                
+                # Parse JSON response
+                try:
+                    return json.loads(response_text)
+                except json.JSONDecodeError:
+                    logger.warning(f"Invalid JSON response from {endpoint}: {response_text}")
+                    return {"data": response_text}
+                    
+        except asyncio.TimeoutError:
+            logger.error(f"API timeout: {endpoint}")
+            raise Exception("Request timeout")
+        except Exception as e:
+            logger.error(f"API call failed ({method} {endpoint}): {e}")
+            raise
+    
+    def _get_user_jwt(self, chat_id: int) -> Optional[str]:
+        """Get JWT token for chat_id from Redis"""
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        token = self.redis_client.get(jwt_key)
+        return token.decode() if token else None
+    
+    async def send_notification(self, chat_id: int, message: str):
+        """Send notification to user"""
+        try:
+            await self.bot.send_message(chat_id=chat_id, text=message)
+        except Exception as e:
+            logger.error(f"Failed to send notification to {chat_id}: {e}")
+
+
+# Bot factory
+async def create_telegram_bot(
+    bot_token: str,
+    api_base_url: str,
+    redis_client: redis.Redis,
+) -> TelegramBotClient:
+    """Create and start Telegram bot"""
+    bot = TelegramBotClient(bot_token, api_base_url, redis_client)
+    return bot
diff --git a/.history/app/bot/client_20251210221526.py b/.history/app/bot/client_20251210221526.py
new file mode 100644
index 0000000..7643940
--- /dev/null
+++ b/.history/app/bot/client_20251210221526.py
@@ -0,0 +1,480 @@
+"""
+Telegram Bot - API-First Client
+All database operations go through API endpoints, not direct SQLAlchemy.
+"""
+import logging
+from datetime import datetime
+from typing import Optional, Dict, Any
+from decimal import Decimal
+import aiohttp
+import time
+import asyncio
+import json
+import redis
+from aiogram import Bot, Dispatcher, types, F
+from aiogram.filters import Command
+from aiogram.types import Message
+from app.security.hmac_manager import hmac_manager
+
+
+logger = logging.getLogger(__name__)
+
+
+class TelegramBotClient:
+    """
+    Telegram Bot that communicates exclusively via API calls.
+    
+    Features:
+    - User authentication via JWT tokens stored in Redis
+    - All operations through API (no direct DB access)
+    - Async HTTP requests with aiohttp
+    - Event listening via Redis Streams
+    """
+    
+    def __init__(self, bot_token: str, api_base_url: str, redis_client: redis.Redis):
+        self.bot = Bot(token=bot_token)
+        self.dp = Dispatcher()
+        self.api_base_url = api_base_url
+        self.redis_client = redis_client
+        self.session: Optional[aiohttp.ClientSession] = None
+        
+        # Register handlers
+        self._setup_handlers()
+    
+    def _setup_handlers(self):
+        """Register message handlers"""
+        self.dp.message.register(self.cmd_start, Command("start"))
+        self.dp.message.register(self.cmd_help, Command("help"))
+        self.dp.message.register(self.cmd_balance, Command("balance"))
+        self.dp.message.register(self.cmd_add_transaction, Command("add"))
+    
+    async def start(self):
+        """Start bot polling"""
+        self.session = aiohttp.ClientSession()
+        logger.info("Telegram bot started")
+        
+        # Start polling
+        try:
+            await self.dp.start_polling(self.bot)
+        finally:
+            await self.session.close()
+    
+    # ========== Handler: /start (Binding) ==========
+    async def cmd_start(self, message: Message):
+        """
+        /start - Begin Telegram binding process.
+        
+        **Flow:**
+        1. Check if user already bound (JWT in Redis)
+        2. If not: Generate binding code via API
+        3. Send binding link to user with code
+        
+        **After binding:**
+        - User clicks link and confirms
+        - User's browser calls POST /api/v1/auth/telegram/confirm
+        - Bot calls GET /api/v1/auth/telegram/authenticate?chat_id=XXXX
+        - Bot stores JWT in Redis for future API calls
+        """
+        chat_id = message.chat.id
+        
+        # Check if already bound
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        existing_token = self.redis_client.get(jwt_key)
+        
+        if existing_token:
+            await message.answer(
+                "✅ **You're already connected!**\n\n"
+                "Use /balance to check wallets\n"
+                "Use /add to add transactions\n"
+                "Use /help for all commands",
+                parse_mode="Markdown"
+            )
+            return
+        
+        # Generate binding code
+        try:
+            logger.info(f"Starting binding for chat_id={chat_id}")
+            
+            code_response = await self._api_call(
+                method="POST",
+                endpoint="/api/v1/auth/telegram/start",
+                data={"chat_id": chat_id},
+                use_jwt=False,
+            )
+            
+            binding_code = code_response.get("code")
+            if not binding_code:
+                raise ValueError("No code in response")
+            
+            # Store binding code in Redis for validation
+            # (expires in 10 minutes as per backend TTL)
+            binding_key = f"chat_id:{chat_id}:binding_code"
+            self.redis_client.setex(
+                binding_key,
+                600,
+                json.dumps({"code": binding_code, "created_at": datetime.utcnow().isoformat()})
+            )
+            
+            # Build binding link (replace with actual frontend URL)
+            # Example: https://yourapp.com/auth/telegram/confirm?code=XXX&chat_id=123
+            binding_url = (
+                f"https://your-finance-app.com/auth/telegram/confirm"
+                f"?code={binding_code}&chat_id={chat_id}"
+            )
+            
+            # Send binding link to user
+            await message.answer(
+                f"🔗 **Click to bind your account:**\n\n"
+                f"[📱 Open Account Binding]({binding_url})\n\n"
+                f"⏱ Code expires in 10 minutes\n\n"
+                f"❓ Already have an account? Just log in and click the link.",
+                parse_mode="Markdown",
+                disable_web_page_preview=True,
+            )
+            
+            logger.info(f"Binding code sent to chat_id={chat_id}")
+            
+        except Exception as e:
+            logger.error(f"Binding start error: {e}", exc_info=True)
+            await message.answer("❌ Could not start binding. Try again later.")
+    
+    # ========== Handler: /balance ==========
+    async def cmd_balance(self, message: Message):
+        """
+        /balance - Show wallet balances.
+        
+        **Requires:**
+        - User must be bound (JWT token in Redis)
+        - JWT obtained via binding confirmation
+        - API call with JWT auth
+        
+        **Try:**
+        Use /start to bind your account first
+        """
+        chat_id = message.chat.id
+        
+        # Get JWT token from Redis
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            # Try to authenticate if user exists
+            try:
+                auth_result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/auth/telegram/authenticate",
+                    params={"chat_id": chat_id},
+                    use_jwt=False,
+                )
+                
+                if auth_result and auth_result.get("jwt_token"):
+                    jwt_token = auth_result["jwt_token"]
+                    
+                    # Store in Redis for future use
+                    self.redis_client.setex(
+                        f"chat_id:{chat_id}:jwt",
+                        86400 * 30,  # 30 days
+                        jwt_token
+                    )
+                    
+                    logger.info(f"JWT obtained for chat_id={chat_id}")
+                    
+            except Exception as e:
+                logger.warning(f"Could not authenticate user: {e}")
+        
+        if not jwt_token:
+            await message.answer(
+                "❌ Not connected yet\n\n"
+                "Use /start to bind your Telegram account first",
+                parse_mode="Markdown"
+            )
+            return
+        
+        try:
+            # Call API: GET /api/v1/accounts?family_id=1
+            accounts_response = await self._api_call(
+                method="GET",
+                endpoint="/api/v1/accounts",
+                jwt_token=jwt_token,
+                params={"family_id": 1},  # TODO: Get from user context
+                use_jwt=True,
+            )
+            
+            accounts = accounts_response if isinstance(accounts_response, list) else accounts_response.get("accounts", [])
+            
+            if not accounts:
+                await message.answer(
+                    "💰 No accounts found\n\n"
+                    "Contact support to set up your first account",
+                    parse_mode="Markdown"
+                )
+                return
+            
+            # Format response
+            response = "💰 **Your Accounts:**\n\n"
+            for account in accounts[:10]:  # Limit to 10
+                balance = account.get("balance", 0)
+                currency = account.get("currency", "USD")
+                response += f"📊 {account.get('name', 'Account')}: {balance} {currency}\n"
+            
+            await message.answer(response, parse_mode="Markdown")
+            logger.info(f"Balance shown for chat_id={chat_id}")
+        
+        except Exception as e:
+            logger.error(f"Balance fetch error for {chat_id}: {e}", exc_info=True)
+            await message.answer(
+                "❌ Could not fetch balance\n\n"
+                "Try again later or contact support",
+                parse_mode="Markdown"
+            )
+    
+    # ========== Handler: /add (Create Transaction) ==========
+    async def cmd_add_transaction(self, message: Message):
+        """
+        /add - Create new transaction (interactive).
+        
+        Flow:
+        1. Ask for amount
+        2. Ask for category
+        3. Ask for wallet (from/to)
+        4. Create transaction via API
+        """
+        
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        if not jwt_token:
+            await message.answer("❌ Not connected. Use /start first.")
+            return
+        
+        # Store conversation state in Redis
+        state_key = f"chat_id:{chat_id}:state"
+        self.redis_client.setex(state_key, 300, json.dumps({
+            "action": "add_transaction",
+            "step": 1,  # Waiting for amount
+        }))
+        
+        await message.answer("💵 How much?\n\nEnter amount (e.g., 50.00)")
+    
+    async def handle_transaction_input(self, message: Message, state: Dict[str, Any]):
+        """Handle transaction creation in steps"""
+        chat_id = message.chat.id
+        jwt_token = self._get_user_jwt(chat_id)
+        
+        step = state.get("step", 1)
+        
+        if step == 1:
+            # Amount entered
+            try:
+                amount = Decimal(message.text)
+            except:
+                await message.answer("❌ Invalid amount. Try again.")
+                return
+            
+            state["amount"] = float(amount)
+            state["step"] = 2
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("📂 Which category?\n\n/food /transport /other")
+        
+        elif step == 2:
+            # Category selected
+            state["category"] = message.text
+            state["step"] = 3
+            self.redis_client.setex(f"chat_id:{chat_id}:state", 300, json.dumps(state))
+            
+            await message.answer("💬 Any notes?\n\n(or /skip)")
+        
+        elif step == 3:
+            # Notes entered (or skipped)
+            state["notes"] = message.text if message.text != "/skip" else ""
+            
+            # Create transaction via API
+            try:
+                result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/transactions",
+                    jwt_token=jwt_token,
+                    data={
+                        "family_id": 1,
+                        "from_wallet_id": 10,
+                        "amount": state["amount"],
+                        "category_id": 5,  # TODO: Map category
+                        "description": state["category"],
+                        "notes": state["notes"],
+                    }
+                )
+                
+                tx_id = result.get("id")
+                await message.answer(f"✅ Transaction #{tx_id} created!")
+            
+            except Exception as e:
+                logger.error(f"Transaction creation error: {e}")
+                await message.answer("❌ Creation failed. Try again.")
+            
+            finally:
+                # Clean up state
+                self.redis_client.delete(f"chat_id:{chat_id}:state")
+    
+    # ========== Handler: /help ==========
+    async def cmd_help(self, message: Message):
+        """Show available commands and binding instructions"""
+        chat_id = message.chat.id
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        is_bound = self.redis_client.get(jwt_key) is not None
+        
+        if is_bound:
+            help_text = """🤖 **Finance Bot - Commands:**
+
+🔗 **Account**
+/start - Re-bind account (if needed)
+/balance - Show all account balances
+/settings - Account settings
+
+💰 **Transactions**
+/add - Add new transaction
+/recent - Last 10 transactions
+/category - View by category
+
+📊 **Reports**
+/daily - Daily spending report
+/weekly - Weekly summary
+/monthly - Monthly summary
+
+❓ **Help**
+/help - This message
+"""
+        else:
+            help_text = """🤖 **Finance Bot - Getting Started**
+
+**Step 1: Bind Your Account**
+/start - Click the link to bind your Telegram account
+
+**Step 2: Login**
+Use your email and password on the binding page
+
+**Step 3: Done!**
+- /balance - View your accounts
+- /add - Create transactions
+- /help - See all commands
+
+🔒 **Privacy**
+Your data is encrypted and secure
+Only you can access your accounts
+"""
+        
+        await message.answer(help_text, parse_mode="Markdown")
+    
+    # ========== API Communication Methods ==========
+    async def _api_call(
+        self,
+        method: str,
+        endpoint: str,
+        data: Dict = None,
+        params: Dict = None,
+        jwt_token: Optional[str] = None,
+        use_jwt: bool = True,
+    ) -> Dict[str, Any]:
+        """
+        Make HTTP request to API with proper authentication headers.
+        
+        **Headers:**
+        - Authorization: Bearer <jwt_token> (if use_jwt=True)
+        - X-Client-Id: telegram_bot
+        - X-Signature: HMAC_SHA256(method + endpoint + timestamp + body)
+        - X-Timestamp: unix timestamp
+        
+        **Auth Flow:**
+        1. For public endpoints (binding): use_jwt=False, no Authorization header
+        2. For user endpoints: use_jwt=True, pass jwt_token
+        3. All calls include HMAC signature for integrity
+        
+        **Raises:**
+        - Exception: API error with status code and message
+        """
+        
+        if not self.session:
+            raise RuntimeError("Session not initialized")
+        
+        # Build URL
+        url = f"{self.api_base_url}{endpoint}"
+        
+        # Build headers
+        headers = {
+            "X-Client-Id": "telegram_bot",
+            "Content-Type": "application/json",
+        }
+        
+        # Add JWT if provided and requested
+        if use_jwt and jwt_token:
+            headers["Authorization"] = f"Bearer {jwt_token}"
+        
+        # Add HMAC signature for integrity verification
+        timestamp = int(time.time())
+        headers["X-Timestamp"] = str(timestamp)
+        
+        signature = hmac_manager.create_signature(
+            method=method,
+            endpoint=endpoint,
+            timestamp=timestamp,
+            body=data,
+        )
+        headers["X-Signature"] = signature
+        
+        # Make request
+        try:
+            async with self.session.request(
+                method=method,
+                url=url,
+                json=data,
+                params=params,
+                headers=headers,
+                timeout=aiohttp.ClientTimeout(total=10),
+            ) as response:
+                response_text = await response.text()
+                
+                if response.status >= 400:
+                    logger.error(
+                        f"API error {response.status}: {endpoint}\n"
+                        f"Response: {response_text[:500]}"
+                    )
+                    raise Exception(
+                        f"API error {response.status}: {response_text[:200]}"
+                    )
+                
+                # Parse JSON response
+                try:
+                    return json.loads(response_text)
+                except json.JSONDecodeError:
+                    logger.warning(f"Invalid JSON response from {endpoint}: {response_text}")
+                    return {"data": response_text}
+                    
+        except asyncio.TimeoutError:
+            logger.error(f"API timeout: {endpoint}")
+            raise Exception("Request timeout")
+        except Exception as e:
+            logger.error(f"API call failed ({method} {endpoint}): {e}")
+            raise
+    
+    def _get_user_jwt(self, chat_id: int) -> Optional[str]:
+        """Get JWT token for chat_id from Redis"""
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        token = self.redis_client.get(jwt_key)
+        return token.decode() if token else None
+    
+    async def send_notification(self, chat_id: int, message: str):
+        """Send notification to user"""
+        try:
+            await self.bot.send_message(chat_id=chat_id, text=message)
+        except Exception as e:
+            logger.error(f"Failed to send notification to {chat_id}: {e}")
+
+
+# Bot factory
+async def create_telegram_bot(
+    bot_token: str,
+    api_base_url: str,
+    redis_client: redis.Redis,
+) -> TelegramBotClient:
+    """Create and start Telegram bot"""
+    bot = TelegramBotClient(bot_token, api_base_url, redis_client)
+    return bot
diff --git a/.history/app/security/middleware_20251210221744.py b/.history/app/security/middleware_20251210221744.py
new file mode 100644
index 0000000..e126c86
--- /dev/null
+++ b/.history/app/security/middleware_20251210221744.py
@@ -0,0 +1,316 @@
+"""
+FastAPI Middleware Stack - Authentication, Authorization, and Security
+"""
+from fastapi import FastAPI, Request, HTTPException, status
+from fastapi.responses import JSONResponse
+import logging
+import time
+from typing import Optional, Callable, Any
+from datetime import datetime
+import redis
+from starlette.middleware.base import BaseHTTPMiddleware
+
+from app.security.jwt_manager import jwt_manager, TokenPayload
+from app.security.hmac_manager import hmac_manager
+from app.security.rbac import RBACEngine, UserContext, MemberRole, Permission
+from app.core.config import settings
+
+
+logger = logging.getLogger(__name__)
+
+
+class SecurityHeadersMiddleware(BaseHTTPMiddleware):
+    """Add security headers to all responses"""
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        response = await call_next(request)
+        
+        # Security headers
+        response.headers["X-Content-Type-Options"] = "nosniff"
+        response.headers["X-Frame-Options"] = "DENY"
+        response.headers["X-XSS-Protection"] = "1; mode=block"
+        response.headers["Strict-Transport-Security"] = "max-age=31536000; includeSubDomains"
+        response.headers["Content-Security-Policy"] = "default-src 'self'"
+        response.headers["Referrer-Policy"] = "strict-origin-when-cross-origin"
+        
+        return response
+
+
+class RateLimitMiddleware(BaseHTTPMiddleware):
+    """Rate limiting using Redis"""
+    
+    def __init__(self, app: FastAPI, redis_client: redis.Redis):
+        super().__init__(app)
+        self.redis_client = redis_client
+        self.rate_limit_requests = 100  # requests
+        self.rate_limit_window = 60     # seconds
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip rate limiting for health checks
+        if request.url.path == "/health":
+            return await call_next(request)
+        
+        # Get client IP
+        client_ip = request.client.host
+        
+        # Rate limit key
+        rate_key = f"rate_limit:{client_ip}"
+        
+        # Check rate limit
+        try:
+            current = self.redis_client.get(rate_key)
+            if current and int(current) >= self.rate_limit_requests:
+                return JSONResponse(
+                    status_code=429,
+                    content={"detail": "Rate limit exceeded"}
+                )
+            
+            # Increment counter
+            pipe = self.redis_client.pipeline()
+            pipe.incr(rate_key)
+            pipe.expire(rate_key, self.rate_limit_window)
+            pipe.execute()
+        except Exception as e:
+            logger.warning(f"Rate limiting error: {e}")
+        
+        return await call_next(request)
+
+
+class HMACVerificationMiddleware(BaseHTTPMiddleware):
+    """HMAC signature verification and anti-replay protection"""
+    
+    def __init__(self, app: FastAPI, redis_client: redis.Redis):
+        super().__init__(app)
+        self.redis_client = redis_client
+        hmac_manager.redis_client = redis_client
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip verification for public endpoints
+        public_paths = [
+            "/health",
+            "/docs",
+            "/openapi.json",
+            "/api/v1/auth/login",
+            "/api/v1/auth/telegram/start",
+            "/api/v1/auth/telegram/register",
+            "/api/v1/auth/telegram/authenticate",
+        ]
+        if request.url.path in public_paths:
+            return await call_next(request)
+        
+        # Extract HMAC headers
+        signature = request.headers.get("X-Signature")
+        timestamp = request.headers.get("X-Timestamp")
+        client_id = request.headers.get("X-Client-Id", "unknown")
+        
+        # HMAC verification is optional in MVP (configurable)
+        if settings.require_hmac_verification:
+            if not signature or not timestamp:
+                return JSONResponse(
+                    status_code=400,
+                    content={"detail": "Missing HMAC headers"}
+                )
+            
+            try:
+                timestamp_int = int(timestamp)
+            except ValueError:
+                return JSONResponse(
+                    status_code=400,
+                    content={"detail": "Invalid timestamp format"}
+                )
+            
+            # Read body for signature verification
+            body = await request.body()
+            body_dict = {}
+            if body:
+                try:
+                    import json
+                    body_dict = json.loads(body)
+                except:
+                    pass
+            
+            # Verify HMAC
+            # Get client secret (hardcoded for MVP, should be from DB)
+            client_secret = settings.hmac_secret_key
+            
+            is_valid, error_msg = hmac_manager.verify_signature(
+                method=request.method,
+                endpoint=request.url.path,
+                timestamp=timestamp_int,
+                signature=signature,
+                body=body_dict,
+                client_secret=client_secret,
+            )
+            
+            if not is_valid:
+                logger.warning(f"HMAC verification failed: {error_msg} (client: {client_id})")
+                return JSONResponse(
+                    status_code=401,
+                    content={"detail": f"HMAC verification failed: {error_msg}"}
+                )
+        
+        # Store in request state for logging
+        request.state.client_id = client_id
+        request.state.timestamp = timestamp
+        
+        return await call_next(request)
+
+
+class JWTAuthenticationMiddleware(BaseHTTPMiddleware):
+    """JWT token verification and extraction"""
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip auth for public endpoints
+        public_paths = ["/health", "/docs", "/openapi.json", "/api/v1/auth/login", "/api/v1/auth/telegram/start"]
+        if request.url.path in public_paths:
+            return await call_next(request)
+        
+        # Extract token from Authorization header
+        auth_header = request.headers.get("Authorization")
+        if not auth_header:
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Missing Authorization header"}
+            )
+        
+        # Parse "Bearer <token>"
+        try:
+            scheme, token = auth_header.split()
+            if scheme.lower() != "bearer":
+                raise ValueError("Invalid auth scheme")
+        except (ValueError, IndexError):
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Invalid Authorization header format"}
+            )
+        
+        # Verify JWT
+        try:
+            token_payload = jwt_manager.verify_token(token)
+        except ValueError as e:
+            logger.warning(f"JWT verification failed: {e}")
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Invalid or expired token"}
+            )
+        
+        # Store in request state
+        request.state.user_id = token_payload.sub
+        request.state.token_type = token_payload.type
+        request.state.device_id = token_payload.device_id
+        request.state.family_ids = token_payload.family_ids
+        
+        return await call_next(request)
+
+
+class RBACMiddleware(BaseHTTPMiddleware):
+    """Role-Based Access Control enforcement"""
+    
+    def __init__(self, app: FastAPI, db_session: Any):
+        super().__init__(app)
+        self.db_session = db_session
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip RBAC for public endpoints
+        if request.url.path in ["/health", "/docs", "/openapi.json"]:
+            return await call_next(request)
+        
+        # Get user context from JWT
+        user_id = getattr(request.state, "user_id", None)
+        family_ids = getattr(request.state, "family_ids", [])
+        
+        if not user_id:
+            # Already handled by JWTAuthenticationMiddleware
+            return await call_next(request)
+        
+        # Extract family_id from URL or body
+        family_id = self._extract_family_id(request)
+        
+        if family_id and family_id not in family_ids:
+            return JSONResponse(
+                status_code=403,
+                content={"detail": "Access denied to this family"}
+            )
+        
+        # Load user role (would need DB query in production)
+        # For MVP: Store in request state, resolved in endpoint handlers
+        request.state.family_id = family_id
+        
+        return await call_next(request)
+    
+    @staticmethod
+    def _extract_family_id(request: Request) -> Optional[int]:
+        """Extract family_id from URL or request body"""
+        # From URL path: /api/v1/families/{family_id}/...
+        if "{family_id}" in request.url.path:
+            # Parse from actual path
+            parts = request.url.path.split("/")
+            for i, part in enumerate(parts):
+                if part == "families" and i + 1 < len(parts):
+                    try:
+                        return int(parts[i + 1])
+                    except ValueError:
+                        pass
+        
+        return None
+
+
+class RequestLoggingMiddleware(BaseHTTPMiddleware):
+    """Log all requests and responses for audit"""
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Start timer
+        start_time = time.time()
+        
+        # Get client info
+        client_ip = request.client.host if request.client else "unknown"
+        user_id = getattr(request.state, "user_id", None)
+        
+        # Process request
+        try:
+            response = await call_next(request)
+            response_time_ms = int((time.time() - start_time) * 1000)
+            
+            # Log successful request
+            logger.info(
+                f"Endpoint={request.url.path} "
+                f"Method={request.method} "
+                f"Status={response.status_code} "
+                f"Time={response_time_ms}ms "
+                f"User={user_id} "
+                f"IP={client_ip}"
+            )
+            
+            # Add timing header
+            response.headers["X-Response-Time"] = str(response_time_ms)
+            
+            return response
+        except Exception as e:
+            response_time_ms = int((time.time() - start_time) * 1000)
+            logger.error(
+                f"Request error - Endpoint={request.url.path} "
+                f"Error={str(e)} "
+                f"Time={response_time_ms}ms "
+                f"User={user_id} "
+                f"IP={client_ip}"
+            )
+            raise
+
+
+def add_security_middleware(app: FastAPI, redis_client: redis.Redis, db_session: Any):
+    """Register all security middleware in correct order"""
+    
+    # Order matters! Process in reverse order of registration:
+    # 1. RequestLoggingMiddleware (innermost, executes last)
+    # 2. RBACMiddleware
+    # 3. JWTAuthenticationMiddleware
+    # 4. HMACVerificationMiddleware
+    # 5. RateLimitMiddleware
+    # 6. SecurityHeadersMiddleware (outermost, executes first)
+    
+    app.add_middleware(RequestLoggingMiddleware)
+    app.add_middleware(RBACMiddleware, db_session=db_session)
+    app.add_middleware(JWTAuthenticationMiddleware)
+    app.add_middleware(HMACVerificationMiddleware, redis_client=redis_client)
+    app.add_middleware(RateLimitMiddleware, redis_client=redis_client)
+    app.add_middleware(SecurityHeadersMiddleware)
diff --git a/.history/app/security/middleware_20251210221754.py b/.history/app/security/middleware_20251210221754.py
new file mode 100644
index 0000000..adf2e2f
--- /dev/null
+++ b/.history/app/security/middleware_20251210221754.py
@@ -0,0 +1,324 @@
+"""
+FastAPI Middleware Stack - Authentication, Authorization, and Security
+"""
+from fastapi import FastAPI, Request, HTTPException, status
+from fastapi.responses import JSONResponse
+import logging
+import time
+from typing import Optional, Callable, Any
+from datetime import datetime
+import redis
+from starlette.middleware.base import BaseHTTPMiddleware
+
+from app.security.jwt_manager import jwt_manager, TokenPayload
+from app.security.hmac_manager import hmac_manager
+from app.security.rbac import RBACEngine, UserContext, MemberRole, Permission
+from app.core.config import settings
+
+
+logger = logging.getLogger(__name__)
+
+
+class SecurityHeadersMiddleware(BaseHTTPMiddleware):
+    """Add security headers to all responses"""
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        response = await call_next(request)
+        
+        # Security headers
+        response.headers["X-Content-Type-Options"] = "nosniff"
+        response.headers["X-Frame-Options"] = "DENY"
+        response.headers["X-XSS-Protection"] = "1; mode=block"
+        response.headers["Strict-Transport-Security"] = "max-age=31536000; includeSubDomains"
+        response.headers["Content-Security-Policy"] = "default-src 'self'"
+        response.headers["Referrer-Policy"] = "strict-origin-when-cross-origin"
+        
+        return response
+
+
+class RateLimitMiddleware(BaseHTTPMiddleware):
+    """Rate limiting using Redis"""
+    
+    def __init__(self, app: FastAPI, redis_client: redis.Redis):
+        super().__init__(app)
+        self.redis_client = redis_client
+        self.rate_limit_requests = 100  # requests
+        self.rate_limit_window = 60     # seconds
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip rate limiting for health checks
+        if request.url.path == "/health":
+            return await call_next(request)
+        
+        # Get client IP
+        client_ip = request.client.host
+        
+        # Rate limit key
+        rate_key = f"rate_limit:{client_ip}"
+        
+        # Check rate limit
+        try:
+            current = self.redis_client.get(rate_key)
+            if current and int(current) >= self.rate_limit_requests:
+                return JSONResponse(
+                    status_code=429,
+                    content={"detail": "Rate limit exceeded"}
+                )
+            
+            # Increment counter
+            pipe = self.redis_client.pipeline()
+            pipe.incr(rate_key)
+            pipe.expire(rate_key, self.rate_limit_window)
+            pipe.execute()
+        except Exception as e:
+            logger.warning(f"Rate limiting error: {e}")
+        
+        return await call_next(request)
+
+
+class HMACVerificationMiddleware(BaseHTTPMiddleware):
+    """HMAC signature verification and anti-replay protection"""
+    
+    def __init__(self, app: FastAPI, redis_client: redis.Redis):
+        super().__init__(app)
+        self.redis_client = redis_client
+        hmac_manager.redis_client = redis_client
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip verification for public endpoints
+        public_paths = [
+            "/health",
+            "/docs",
+            "/openapi.json",
+            "/api/v1/auth/login",
+            "/api/v1/auth/telegram/start",
+            "/api/v1/auth/telegram/register",
+            "/api/v1/auth/telegram/authenticate",
+        ]
+        if request.url.path in public_paths:
+            return await call_next(request)
+        
+        # Extract HMAC headers
+        signature = request.headers.get("X-Signature")
+        timestamp = request.headers.get("X-Timestamp")
+        client_id = request.headers.get("X-Client-Id", "unknown")
+        
+        # HMAC verification is optional in MVP (configurable)
+        if settings.require_hmac_verification:
+            if not signature or not timestamp:
+                return JSONResponse(
+                    status_code=400,
+                    content={"detail": "Missing HMAC headers"}
+                )
+            
+            try:
+                timestamp_int = int(timestamp)
+            except ValueError:
+                return JSONResponse(
+                    status_code=400,
+                    content={"detail": "Invalid timestamp format"}
+                )
+            
+            # Read body for signature verification
+            body = await request.body()
+            body_dict = {}
+            if body:
+                try:
+                    import json
+                    body_dict = json.loads(body)
+                except:
+                    pass
+            
+            # Verify HMAC
+            # Get client secret (hardcoded for MVP, should be from DB)
+            client_secret = settings.hmac_secret_key
+            
+            is_valid, error_msg = hmac_manager.verify_signature(
+                method=request.method,
+                endpoint=request.url.path,
+                timestamp=timestamp_int,
+                signature=signature,
+                body=body_dict,
+                client_secret=client_secret,
+            )
+            
+            if not is_valid:
+                logger.warning(f"HMAC verification failed: {error_msg} (client: {client_id})")
+                return JSONResponse(
+                    status_code=401,
+                    content={"detail": f"HMAC verification failed: {error_msg}"}
+                )
+        
+        # Store in request state for logging
+        request.state.client_id = client_id
+        request.state.timestamp = timestamp
+        
+        return await call_next(request)
+
+
+class JWTAuthenticationMiddleware(BaseHTTPMiddleware):
+    """JWT token verification and extraction"""
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip auth for public endpoints
+        public_paths = [
+            "/health",
+            "/docs",
+            "/openapi.json",
+            "/api/v1/auth/login",
+            "/api/v1/auth/telegram/start",
+            "/api/v1/auth/telegram/register",
+            "/api/v1/auth/telegram/authenticate",
+        ]
+        if request.url.path in public_paths:
+            return await call_next(request)
+        
+        # Extract token from Authorization header
+        auth_header = request.headers.get("Authorization")
+        if not auth_header:
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Missing Authorization header"}
+            )
+        
+        # Parse "Bearer <token>"
+        try:
+            scheme, token = auth_header.split()
+            if scheme.lower() != "bearer":
+                raise ValueError("Invalid auth scheme")
+        except (ValueError, IndexError):
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Invalid Authorization header format"}
+            )
+        
+        # Verify JWT
+        try:
+            token_payload = jwt_manager.verify_token(token)
+        except ValueError as e:
+            logger.warning(f"JWT verification failed: {e}")
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Invalid or expired token"}
+            )
+        
+        # Store in request state
+        request.state.user_id = token_payload.sub
+        request.state.token_type = token_payload.type
+        request.state.device_id = token_payload.device_id
+        request.state.family_ids = token_payload.family_ids
+        
+        return await call_next(request)
+
+
+class RBACMiddleware(BaseHTTPMiddleware):
+    """Role-Based Access Control enforcement"""
+    
+    def __init__(self, app: FastAPI, db_session: Any):
+        super().__init__(app)
+        self.db_session = db_session
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip RBAC for public endpoints
+        if request.url.path in ["/health", "/docs", "/openapi.json"]:
+            return await call_next(request)
+        
+        # Get user context from JWT
+        user_id = getattr(request.state, "user_id", None)
+        family_ids = getattr(request.state, "family_ids", [])
+        
+        if not user_id:
+            # Already handled by JWTAuthenticationMiddleware
+            return await call_next(request)
+        
+        # Extract family_id from URL or body
+        family_id = self._extract_family_id(request)
+        
+        if family_id and family_id not in family_ids:
+            return JSONResponse(
+                status_code=403,
+                content={"detail": "Access denied to this family"}
+            )
+        
+        # Load user role (would need DB query in production)
+        # For MVP: Store in request state, resolved in endpoint handlers
+        request.state.family_id = family_id
+        
+        return await call_next(request)
+    
+    @staticmethod
+    def _extract_family_id(request: Request) -> Optional[int]:
+        """Extract family_id from URL or request body"""
+        # From URL path: /api/v1/families/{family_id}/...
+        if "{family_id}" in request.url.path:
+            # Parse from actual path
+            parts = request.url.path.split("/")
+            for i, part in enumerate(parts):
+                if part == "families" and i + 1 < len(parts):
+                    try:
+                        return int(parts[i + 1])
+                    except ValueError:
+                        pass
+        
+        return None
+
+
+class RequestLoggingMiddleware(BaseHTTPMiddleware):
+    """Log all requests and responses for audit"""
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Start timer
+        start_time = time.time()
+        
+        # Get client info
+        client_ip = request.client.host if request.client else "unknown"
+        user_id = getattr(request.state, "user_id", None)
+        
+        # Process request
+        try:
+            response = await call_next(request)
+            response_time_ms = int((time.time() - start_time) * 1000)
+            
+            # Log successful request
+            logger.info(
+                f"Endpoint={request.url.path} "
+                f"Method={request.method} "
+                f"Status={response.status_code} "
+                f"Time={response_time_ms}ms "
+                f"User={user_id} "
+                f"IP={client_ip}"
+            )
+            
+            # Add timing header
+            response.headers["X-Response-Time"] = str(response_time_ms)
+            
+            return response
+        except Exception as e:
+            response_time_ms = int((time.time() - start_time) * 1000)
+            logger.error(
+                f"Request error - Endpoint={request.url.path} "
+                f"Error={str(e)} "
+                f"Time={response_time_ms}ms "
+                f"User={user_id} "
+                f"IP={client_ip}"
+            )
+            raise
+
+
+def add_security_middleware(app: FastAPI, redis_client: redis.Redis, db_session: Any):
+    """Register all security middleware in correct order"""
+    
+    # Order matters! Process in reverse order of registration:
+    # 1. RequestLoggingMiddleware (innermost, executes last)
+    # 2. RBACMiddleware
+    # 3. JWTAuthenticationMiddleware
+    # 4. HMACVerificationMiddleware
+    # 5. RateLimitMiddleware
+    # 6. SecurityHeadersMiddleware (outermost, executes first)
+    
+    app.add_middleware(RequestLoggingMiddleware)
+    app.add_middleware(RBACMiddleware, db_session=db_session)
+    app.add_middleware(JWTAuthenticationMiddleware)
+    app.add_middleware(HMACVerificationMiddleware, redis_client=redis_client)
+    app.add_middleware(RateLimitMiddleware, redis_client=redis_client)
+    app.add_middleware(SecurityHeadersMiddleware)
diff --git a/.history/app/security/middleware_20251210221758.py b/.history/app/security/middleware_20251210221758.py
new file mode 100644
index 0000000..adf2e2f
--- /dev/null
+++ b/.history/app/security/middleware_20251210221758.py
@@ -0,0 +1,324 @@
+"""
+FastAPI Middleware Stack - Authentication, Authorization, and Security
+"""
+from fastapi import FastAPI, Request, HTTPException, status
+from fastapi.responses import JSONResponse
+import logging
+import time
+from typing import Optional, Callable, Any
+from datetime import datetime
+import redis
+from starlette.middleware.base import BaseHTTPMiddleware
+
+from app.security.jwt_manager import jwt_manager, TokenPayload
+from app.security.hmac_manager import hmac_manager
+from app.security.rbac import RBACEngine, UserContext, MemberRole, Permission
+from app.core.config import settings
+
+
+logger = logging.getLogger(__name__)
+
+
+class SecurityHeadersMiddleware(BaseHTTPMiddleware):
+    """Add security headers to all responses"""
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        response = await call_next(request)
+        
+        # Security headers
+        response.headers["X-Content-Type-Options"] = "nosniff"
+        response.headers["X-Frame-Options"] = "DENY"
+        response.headers["X-XSS-Protection"] = "1; mode=block"
+        response.headers["Strict-Transport-Security"] = "max-age=31536000; includeSubDomains"
+        response.headers["Content-Security-Policy"] = "default-src 'self'"
+        response.headers["Referrer-Policy"] = "strict-origin-when-cross-origin"
+        
+        return response
+
+
+class RateLimitMiddleware(BaseHTTPMiddleware):
+    """Rate limiting using Redis"""
+    
+    def __init__(self, app: FastAPI, redis_client: redis.Redis):
+        super().__init__(app)
+        self.redis_client = redis_client
+        self.rate_limit_requests = 100  # requests
+        self.rate_limit_window = 60     # seconds
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip rate limiting for health checks
+        if request.url.path == "/health":
+            return await call_next(request)
+        
+        # Get client IP
+        client_ip = request.client.host
+        
+        # Rate limit key
+        rate_key = f"rate_limit:{client_ip}"
+        
+        # Check rate limit
+        try:
+            current = self.redis_client.get(rate_key)
+            if current and int(current) >= self.rate_limit_requests:
+                return JSONResponse(
+                    status_code=429,
+                    content={"detail": "Rate limit exceeded"}
+                )
+            
+            # Increment counter
+            pipe = self.redis_client.pipeline()
+            pipe.incr(rate_key)
+            pipe.expire(rate_key, self.rate_limit_window)
+            pipe.execute()
+        except Exception as e:
+            logger.warning(f"Rate limiting error: {e}")
+        
+        return await call_next(request)
+
+
+class HMACVerificationMiddleware(BaseHTTPMiddleware):
+    """HMAC signature verification and anti-replay protection"""
+    
+    def __init__(self, app: FastAPI, redis_client: redis.Redis):
+        super().__init__(app)
+        self.redis_client = redis_client
+        hmac_manager.redis_client = redis_client
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip verification for public endpoints
+        public_paths = [
+            "/health",
+            "/docs",
+            "/openapi.json",
+            "/api/v1/auth/login",
+            "/api/v1/auth/telegram/start",
+            "/api/v1/auth/telegram/register",
+            "/api/v1/auth/telegram/authenticate",
+        ]
+        if request.url.path in public_paths:
+            return await call_next(request)
+        
+        # Extract HMAC headers
+        signature = request.headers.get("X-Signature")
+        timestamp = request.headers.get("X-Timestamp")
+        client_id = request.headers.get("X-Client-Id", "unknown")
+        
+        # HMAC verification is optional in MVP (configurable)
+        if settings.require_hmac_verification:
+            if not signature or not timestamp:
+                return JSONResponse(
+                    status_code=400,
+                    content={"detail": "Missing HMAC headers"}
+                )
+            
+            try:
+                timestamp_int = int(timestamp)
+            except ValueError:
+                return JSONResponse(
+                    status_code=400,
+                    content={"detail": "Invalid timestamp format"}
+                )
+            
+            # Read body for signature verification
+            body = await request.body()
+            body_dict = {}
+            if body:
+                try:
+                    import json
+                    body_dict = json.loads(body)
+                except:
+                    pass
+            
+            # Verify HMAC
+            # Get client secret (hardcoded for MVP, should be from DB)
+            client_secret = settings.hmac_secret_key
+            
+            is_valid, error_msg = hmac_manager.verify_signature(
+                method=request.method,
+                endpoint=request.url.path,
+                timestamp=timestamp_int,
+                signature=signature,
+                body=body_dict,
+                client_secret=client_secret,
+            )
+            
+            if not is_valid:
+                logger.warning(f"HMAC verification failed: {error_msg} (client: {client_id})")
+                return JSONResponse(
+                    status_code=401,
+                    content={"detail": f"HMAC verification failed: {error_msg}"}
+                )
+        
+        # Store in request state for logging
+        request.state.client_id = client_id
+        request.state.timestamp = timestamp
+        
+        return await call_next(request)
+
+
+class JWTAuthenticationMiddleware(BaseHTTPMiddleware):
+    """JWT token verification and extraction"""
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip auth for public endpoints
+        public_paths = [
+            "/health",
+            "/docs",
+            "/openapi.json",
+            "/api/v1/auth/login",
+            "/api/v1/auth/telegram/start",
+            "/api/v1/auth/telegram/register",
+            "/api/v1/auth/telegram/authenticate",
+        ]
+        if request.url.path in public_paths:
+            return await call_next(request)
+        
+        # Extract token from Authorization header
+        auth_header = request.headers.get("Authorization")
+        if not auth_header:
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Missing Authorization header"}
+            )
+        
+        # Parse "Bearer <token>"
+        try:
+            scheme, token = auth_header.split()
+            if scheme.lower() != "bearer":
+                raise ValueError("Invalid auth scheme")
+        except (ValueError, IndexError):
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Invalid Authorization header format"}
+            )
+        
+        # Verify JWT
+        try:
+            token_payload = jwt_manager.verify_token(token)
+        except ValueError as e:
+            logger.warning(f"JWT verification failed: {e}")
+            return JSONResponse(
+                status_code=401,
+                content={"detail": "Invalid or expired token"}
+            )
+        
+        # Store in request state
+        request.state.user_id = token_payload.sub
+        request.state.token_type = token_payload.type
+        request.state.device_id = token_payload.device_id
+        request.state.family_ids = token_payload.family_ids
+        
+        return await call_next(request)
+
+
+class RBACMiddleware(BaseHTTPMiddleware):
+    """Role-Based Access Control enforcement"""
+    
+    def __init__(self, app: FastAPI, db_session: Any):
+        super().__init__(app)
+        self.db_session = db_session
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Skip RBAC for public endpoints
+        if request.url.path in ["/health", "/docs", "/openapi.json"]:
+            return await call_next(request)
+        
+        # Get user context from JWT
+        user_id = getattr(request.state, "user_id", None)
+        family_ids = getattr(request.state, "family_ids", [])
+        
+        if not user_id:
+            # Already handled by JWTAuthenticationMiddleware
+            return await call_next(request)
+        
+        # Extract family_id from URL or body
+        family_id = self._extract_family_id(request)
+        
+        if family_id and family_id not in family_ids:
+            return JSONResponse(
+                status_code=403,
+                content={"detail": "Access denied to this family"}
+            )
+        
+        # Load user role (would need DB query in production)
+        # For MVP: Store in request state, resolved in endpoint handlers
+        request.state.family_id = family_id
+        
+        return await call_next(request)
+    
+    @staticmethod
+    def _extract_family_id(request: Request) -> Optional[int]:
+        """Extract family_id from URL or request body"""
+        # From URL path: /api/v1/families/{family_id}/...
+        if "{family_id}" in request.url.path:
+            # Parse from actual path
+            parts = request.url.path.split("/")
+            for i, part in enumerate(parts):
+                if part == "families" and i + 1 < len(parts):
+                    try:
+                        return int(parts[i + 1])
+                    except ValueError:
+                        pass
+        
+        return None
+
+
+class RequestLoggingMiddleware(BaseHTTPMiddleware):
+    """Log all requests and responses for audit"""
+    
+    async def dispatch(self, request: Request, call_next: Callable) -> Any:
+        # Start timer
+        start_time = time.time()
+        
+        # Get client info
+        client_ip = request.client.host if request.client else "unknown"
+        user_id = getattr(request.state, "user_id", None)
+        
+        # Process request
+        try:
+            response = await call_next(request)
+            response_time_ms = int((time.time() - start_time) * 1000)
+            
+            # Log successful request
+            logger.info(
+                f"Endpoint={request.url.path} "
+                f"Method={request.method} "
+                f"Status={response.status_code} "
+                f"Time={response_time_ms}ms "
+                f"User={user_id} "
+                f"IP={client_ip}"
+            )
+            
+            # Add timing header
+            response.headers["X-Response-Time"] = str(response_time_ms)
+            
+            return response
+        except Exception as e:
+            response_time_ms = int((time.time() - start_time) * 1000)
+            logger.error(
+                f"Request error - Endpoint={request.url.path} "
+                f"Error={str(e)} "
+                f"Time={response_time_ms}ms "
+                f"User={user_id} "
+                f"IP={client_ip}"
+            )
+            raise
+
+
+def add_security_middleware(app: FastAPI, redis_client: redis.Redis, db_session: Any):
+    """Register all security middleware in correct order"""
+    
+    # Order matters! Process in reverse order of registration:
+    # 1. RequestLoggingMiddleware (innermost, executes last)
+    # 2. RBACMiddleware
+    # 3. JWTAuthenticationMiddleware
+    # 4. HMACVerificationMiddleware
+    # 5. RateLimitMiddleware
+    # 6. SecurityHeadersMiddleware (outermost, executes first)
+    
+    app.add_middleware(RequestLoggingMiddleware)
+    app.add_middleware(RBACMiddleware, db_session=db_session)
+    app.add_middleware(JWTAuthenticationMiddleware)
+    app.add_middleware(HMACVerificationMiddleware, redis_client=redis_client)
+    app.add_middleware(RateLimitMiddleware, redis_client=redis_client)
+    app.add_middleware(SecurityHeadersMiddleware)
diff --git a/.history/app/services/auth_service_20251210221228.py b/.history/app/services/auth_service_20251210221228.py
new file mode 100644
index 0000000..48d825f
--- /dev/null
+++ b/.history/app/services/auth_service_20251210221228.py
@@ -0,0 +1,260 @@
+"""
+Authentication Service - User login, token management, Telegram binding
+"""
+from datetime import datetime, timedelta
+from typing import Optional, Dict, Any
+import secrets
+import json
+from sqlalchemy.orm import Session
+from app.db.models.user import User
+from app.security.jwt_manager import jwt_manager
+from app.core.config import settings
+import logging
+import redis
+
+
+logger = logging.getLogger(__name__)
+
+# Redis connection for caching binding codes
+redis_client = redis.Redis(
+    host=settings.REDIS_HOST,
+    port=settings.REDIS_PORT,
+    db=settings.REDIS_DB,
+    decode_responses=True,
+)
+
+
+class AuthService:
+    """Handles user authentication, token management, and Telegram binding"""
+    
+    TELEGRAM_BINDING_CODE_TTL = 600  # 10 minutes
+    BINDING_CODE_LENGTH = 24
+    
+    def __init__(self, db: Session):
+        self.db = db
+    
+    async def create_telegram_binding_code(self, chat_id: int) -> str:
+        """
+        Generate temporary code for Telegram user binding.
+        
+        **Flow:**
+        1. Bot calls /auth/telegram/start with chat_id
+        2. Service generates random code and stores in Redis
+        3. Bot builds link: https://bot.example.com/bind?code=XXX
+        4. Bot sends link to user in Telegram
+        5. User clicks link, authenticates, calls /auth/telegram/confirm
+        """
+        code = secrets.token_urlsafe(self.BINDING_CODE_LENGTH)
+        
+        # Store in Redis with TTL (10 minutes)
+        cache_key = f"binding_code:{code}"
+        cache_data = {
+            "chat_id": chat_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        redis_client.setex(
+            cache_key,
+            self.TELEGRAM_BINDING_CODE_TTL,
+            json.dumps(cache_data),
+        )
+        
+        logger.info(f"Generated Telegram binding code for chat_id={chat_id}")
+        return code
+    
+    async def confirm_telegram_binding(
+        self,
+        user_id: int,
+        chat_id: int,
+        code: str,
+        username: Optional[str] = None,
+        first_name: Optional[str] = None,
+        last_name: Optional[str] = None,
+    ) -> Dict[str, Any]:
+        """
+        Confirm Telegram binding after user clicks link.
+        
+        **Flow:**
+        1. User authenticates with email/password
+        2. User clicks binding link: /bind?code=XXX
+        3. Frontend calls /auth/telegram/confirm with code
+        4. Service validates code from Redis
+        5. Service links user.id with telegram_id
+        6. Service returns JWT for bot to use
+        
+        **Returns:**
+        {
+            "success": True,
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        }
+        """
+        
+        # Validate code from Redis
+        cache_key = f"binding_code:{code}"
+        cached_data = redis_client.get(cache_key)
+        
+        if not cached_data:
+            logger.warning(f"Binding code not found or expired: {code}")
+            return {"success": False, "error": "Code expired"}
+        
+        binding_data = json.loads(cached_data)
+        cached_chat_id = binding_data.get("chat_id")
+        
+        if cached_chat_id != chat_id:
+            logger.warning(
+                f"Chat ID mismatch: expected {cached_chat_id}, got {chat_id}"
+            )
+            return {"success": False, "error": "Code mismatch"}
+        
+        # Get user from database
+        user = self.db.query(User).filter_by(id=user_id).first()
+        if not user:
+            logger.error(f"User not found: {user_id}")
+            return {"success": False, "error": "User not found"}
+        
+        # Update user with Telegram info
+        user.telegram_id = chat_id
+        if username:
+            user.username = username
+        if first_name:
+            user.first_name = first_name
+        if last_name:
+            user.last_name = last_name
+        
+        user.updated_at = datetime.utcnow()
+        self.db.commit()
+        
+        # Create JWT token for bot
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        
+        # Remove code from Redis
+        redis_client.delete(cache_key)
+        
+        logger.info(
+            f"Telegram binding confirmed: user_id={user_id}, chat_id={chat_id}"
+        )
+        
+        return {
+            "success": True,
+            "user_id": user.id,
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
+        }
+    
+    async def create_session(
+        self,
+        user_id: int,
+        device_id: Optional[str] = None,
+    ) -> tuple[str, str]:
+        """
+        Create session and issue tokens.
+        
+        **Returns:**
+        (access_token, refresh_token)
+        """
+        
+        user = self.db.query(User).filter_by(id=user_id).first()
+        if not user:
+            raise ValueError("User not found")
+        
+        # Create tokens
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        refresh_token = jwt_manager.create_refresh_token(user_id=user.id)
+        
+        # Store refresh token in Redis for validation
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = {
+            "user_id": user.id,
+            "device_id": device_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        # Refresh token valid for 30 days
+        redis_client.setex(
+            token_key,
+            86400 * 30,
+            json.dumps(token_data),
+        )
+        
+        # Update user activity
+        user.last_activity = datetime.utcnow()
+        self.db.commit()
+        
+        logger.info(f"Session created for user_id={user_id}")
+        
+        return access_token, refresh_token
+    
+    async def refresh_access_token(
+        self,
+        refresh_token: str,
+        user_id: int,
+    ) -> str:
+        """
+        Issue new access token using valid refresh token.
+        
+        **Flow:**
+        1. Check refresh token in Redis
+        2. Validate it belongs to user_id
+        3. Create new access token
+        4. Return new token (don't invalidate refresh token)
+        """
+        
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = redis_client.get(token_key)
+        
+        if not token_data:
+            logger.warning(f"Refresh token not found: {user_id}")
+            raise ValueError("Invalid refresh token")
+        
+        data = json.loads(token_data)
+        if data.get("user_id") != user_id:
+            logger.warning(f"Refresh token user mismatch: {user_id}")
+            raise ValueError("Token user mismatch")
+        
+        # Create new access token
+        access_token = jwt_manager.create_access_token(user_id=user_id)
+        
+        logger.info(f"Access token refreshed for user_id={user_id}")
+        
+        return access_token
+    
+    async def authenticate_telegram_user(self, chat_id: int) -> Optional[Dict[str, Any]]:
+        """
+        Get JWT token for Telegram user (bot authentication).
+        
+        **Flow:**
+        1. Bot queries: GET /auth/telegram/authenticate?chat_id=12345
+        2. Service finds user by telegram_id
+        3. Service creates/returns JWT
+        4. Bot stores JWT for API calls
+        
+        **Returns:**
+        {
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        } or None if not found
+        """
+        
+        user = self.db.query(User).filter_by(telegram_id=chat_id).first()
+        
+        if not user:
+            logger.warning(f"Telegram user not found: {chat_id}")
+            return None
+        
+        # Create JWT token
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        
+        logger.info(f"Telegram user authenticated: chat_id={chat_id}, user_id={user.id}")
+        
+        return {
+            "user_id": user.id,
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
+        }
diff --git a/.history/app/services/auth_service_20251210221406.py b/.history/app/services/auth_service_20251210221406.py
new file mode 100644
index 0000000..2c257d4
--- /dev/null
+++ b/.history/app/services/auth_service_20251210221406.py
@@ -0,0 +1,255 @@
+"""
+Authentication Service - User login, token management, Telegram binding
+"""
+from datetime import datetime, timedelta
+from typing import Optional, Dict, Any
+import secrets
+import json
+from sqlalchemy.orm import Session
+from app.db.models.user import User
+from app.security.jwt_manager import jwt_manager
+from app.core.config import settings
+import logging
+import redis
+
+
+logger = logging.getLogger(__name__)
+
+# Redis connection for caching binding codes
+redis_client = redis.from_url(settings.redis_url)
+
+
+class AuthService:
+    """Handles user authentication, token management, and Telegram binding"""
+    
+    TELEGRAM_BINDING_CODE_TTL = 600  # 10 minutes
+    BINDING_CODE_LENGTH = 24
+    
+    def __init__(self, db: Session):
+        self.db = db
+    
+    async def create_telegram_binding_code(self, chat_id: int) -> str:
+        """
+        Generate temporary code for Telegram user binding.
+        
+        **Flow:**
+        1. Bot calls /auth/telegram/start with chat_id
+        2. Service generates random code and stores in Redis
+        3. Bot builds link: https://bot.example.com/bind?code=XXX
+        4. Bot sends link to user in Telegram
+        5. User clicks link, authenticates, calls /auth/telegram/confirm
+        """
+        code = secrets.token_urlsafe(self.BINDING_CODE_LENGTH)
+        
+        # Store in Redis with TTL (10 minutes)
+        cache_key = f"binding_code:{code}"
+        cache_data = {
+            "chat_id": chat_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        redis_client.setex(
+            cache_key,
+            self.TELEGRAM_BINDING_CODE_TTL,
+            json.dumps(cache_data),
+        )
+        
+        logger.info(f"Generated Telegram binding code for chat_id={chat_id}")
+        return code
+    
+    async def confirm_telegram_binding(
+        self,
+        user_id: int,
+        chat_id: int,
+        code: str,
+        username: Optional[str] = None,
+        first_name: Optional[str] = None,
+        last_name: Optional[str] = None,
+    ) -> Dict[str, Any]:
+        """
+        Confirm Telegram binding after user clicks link.
+        
+        **Flow:**
+        1. User authenticates with email/password
+        2. User clicks binding link: /bind?code=XXX
+        3. Frontend calls /auth/telegram/confirm with code
+        4. Service validates code from Redis
+        5. Service links user.id with telegram_id
+        6. Service returns JWT for bot to use
+        
+        **Returns:**
+        {
+            "success": True,
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        }
+        """
+        
+        # Validate code from Redis
+        cache_key = f"binding_code:{code}"
+        cached_data = redis_client.get(cache_key)
+        
+        if not cached_data:
+            logger.warning(f"Binding code not found or expired: {code}")
+            return {"success": False, "error": "Code expired"}
+        
+        binding_data = json.loads(cached_data)
+        cached_chat_id = binding_data.get("chat_id")
+        
+        if cached_chat_id != chat_id:
+            logger.warning(
+                f"Chat ID mismatch: expected {cached_chat_id}, got {chat_id}"
+            )
+            return {"success": False, "error": "Code mismatch"}
+        
+        # Get user from database
+        user = self.db.query(User).filter_by(id=user_id).first()
+        if not user:
+            logger.error(f"User not found: {user_id}")
+            return {"success": False, "error": "User not found"}
+        
+        # Update user with Telegram info
+        user.telegram_id = chat_id
+        if username:
+            user.username = username
+        if first_name:
+            user.first_name = first_name
+        if last_name:
+            user.last_name = last_name
+        
+        user.updated_at = datetime.utcnow()
+        self.db.commit()
+        
+        # Create JWT token for bot
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        
+        # Remove code from Redis
+        redis_client.delete(cache_key)
+        
+        logger.info(
+            f"Telegram binding confirmed: user_id={user_id}, chat_id={chat_id}"
+        )
+        
+        return {
+            "success": True,
+            "user_id": user.id,
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
+        }
+    
+    async def create_session(
+        self,
+        user_id: int,
+        device_id: Optional[str] = None,
+    ) -> tuple[str, str]:
+        """
+        Create session and issue tokens.
+        
+        **Returns:**
+        (access_token, refresh_token)
+        """
+        
+        user = self.db.query(User).filter_by(id=user_id).first()
+        if not user:
+            raise ValueError("User not found")
+        
+        # Create tokens
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        refresh_token = jwt_manager.create_refresh_token(user_id=user.id)
+        
+        # Store refresh token in Redis for validation
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = {
+            "user_id": user.id,
+            "device_id": device_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        # Refresh token valid for 30 days
+        redis_client.setex(
+            token_key,
+            86400 * 30,
+            json.dumps(token_data),
+        )
+        
+        # Update user activity
+        user.last_activity = datetime.utcnow()
+        self.db.commit()
+        
+        logger.info(f"Session created for user_id={user_id}")
+        
+        return access_token, refresh_token
+    
+    async def refresh_access_token(
+        self,
+        refresh_token: str,
+        user_id: int,
+    ) -> str:
+        """
+        Issue new access token using valid refresh token.
+        
+        **Flow:**
+        1. Check refresh token in Redis
+        2. Validate it belongs to user_id
+        3. Create new access token
+        4. Return new token (don't invalidate refresh token)
+        """
+        
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = redis_client.get(token_key)
+        
+        if not token_data:
+            logger.warning(f"Refresh token not found: {user_id}")
+            raise ValueError("Invalid refresh token")
+        
+        data = json.loads(token_data)
+        if data.get("user_id") != user_id:
+            logger.warning(f"Refresh token user mismatch: {user_id}")
+            raise ValueError("Token user mismatch")
+        
+        # Create new access token
+        access_token = jwt_manager.create_access_token(user_id=user_id)
+        
+        logger.info(f"Access token refreshed for user_id={user_id}")
+        
+        return access_token
+    
+    async def authenticate_telegram_user(self, chat_id: int) -> Optional[Dict[str, Any]]:
+        """
+        Get JWT token for Telegram user (bot authentication).
+        
+        **Flow:**
+        1. Bot queries: GET /auth/telegram/authenticate?chat_id=12345
+        2. Service finds user by telegram_id
+        3. Service creates/returns JWT
+        4. Bot stores JWT for API calls
+        
+        **Returns:**
+        {
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        } or None if not found
+        """
+        
+        user = self.db.query(User).filter_by(telegram_id=chat_id).first()
+        
+        if not user:
+            logger.warning(f"Telegram user not found: {chat_id}")
+            return None
+        
+        # Create JWT token
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        
+        logger.info(f"Telegram user authenticated: chat_id={chat_id}, user_id={user.id}")
+        
+        return {
+            "user_id": user.id,
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
+        }
diff --git a/.history/app/services/auth_service_20251210221434.py b/.history/app/services/auth_service_20251210221434.py
new file mode 100644
index 0000000..767887c
--- /dev/null
+++ b/.history/app/services/auth_service_20251210221434.py
@@ -0,0 +1,279 @@
+"""
+Authentication Service - User login, token management, Telegram binding
+"""
+from datetime import datetime, timedelta
+from typing import Optional, Dict, Any
+import secrets
+import json
+from sqlalchemy.orm import Session
+from app.db.models.user import User
+from app.security.jwt_manager import jwt_manager
+from app.core.config import settings
+import logging
+import redis
+
+
+logger = logging.getLogger(__name__)
+
+# Redis connection for caching binding codes
+redis_client = redis.from_url(settings.redis_url)
+
+
+class AuthService:
+    """Handles user authentication, token management, and Telegram binding"""
+    
+    TELEGRAM_BINDING_CODE_TTL = 600  # 10 minutes
+    BINDING_CODE_LENGTH = 24
+    
+    def __init__(self, db: Session):
+        self.db = db
+    
+    async def create_telegram_binding_code(self, chat_id: int) -> str:
+        """
+        Generate temporary code for Telegram user binding.
+        
+        **Flow:**
+        1. Bot calls /auth/telegram/start with chat_id
+        2. Service generates random code and stores in Redis
+        3. Bot builds link: https://bot.example.com/bind?code=XXX
+        4. Bot sends link to user in Telegram
+        5. User clicks link, authenticates, calls /auth/telegram/confirm
+        """
+        code = secrets.token_urlsafe(self.BINDING_CODE_LENGTH)
+        
+        # Store in Redis with TTL (10 minutes)
+        cache_key = f"binding_code:{code}"
+        cache_data = {
+            "chat_id": chat_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        redis_client.setex(
+            cache_key,
+            self.TELEGRAM_BINDING_CODE_TTL,
+            json.dumps(cache_data),
+        )
+        
+        logger.info(f"Generated Telegram binding code for chat_id={chat_id}")
+        return code
+    
+    async def confirm_telegram_binding(
+        self,
+        user_id: int,
+        chat_id: int,
+        code: str,
+        username: Optional[str] = None,
+        first_name: Optional[str] = None,
+        last_name: Optional[str] = None,
+    ) -> Dict[str, Any]:
+        """
+        Confirm Telegram binding after user clicks link.
+        
+        **Flow:**
+        1. User authenticates with email/password
+        2. User clicks binding link: /bind?code=XXX
+        3. Frontend calls /auth/telegram/confirm with code
+        4. Service validates code from Redis
+        5. Service links user.id with telegram_id
+        6. Service returns JWT for bot to use
+        
+        **Returns:**
+        {
+            "success": True,
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        }
+        
+        **Errors:**
+        - Code expired or not found
+        - Code chat_id mismatch
+        - User not found
+        - Binding already exists (user has different telegram_id)
+        """
+        
+        # Validate code from Redis
+        cache_key = f"binding_code:{code}"
+        cached_data = redis_client.get(cache_key)
+        
+        if not cached_data:
+            logger.warning(f"Binding code not found or expired: {code}")
+            return {"success": False, "error": "Code expired or invalid"}
+        
+        binding_data = json.loads(cached_data)
+        cached_chat_id = binding_data.get("chat_id")
+        
+        if cached_chat_id != chat_id:
+            logger.warning(
+                f"Chat ID mismatch: expected {cached_chat_id}, got {chat_id}"
+            )
+            return {"success": False, "error": "Code mismatch"}
+        
+        # Get user from database
+        user = self.db.query(User).filter_by(id=user_id).first()
+        if not user:
+            logger.error(f"User not found: {user_id}")
+            return {"success": False, "error": "User not found"}
+        
+        # Check if binding already exists (user already bound to different telegram)
+        if user.telegram_id and user.telegram_id != chat_id:
+            logger.warning(
+                f"User {user_id} already bound to telegram_id={user.telegram_id}, "
+                f"attempting to bind to {chat_id}"
+            )
+            return {
+                "success": False,
+                "error": f"Account already bound to different Telegram account (chat_id={user.telegram_id})"
+            }
+        
+        # Update user with Telegram info
+        user.telegram_id = chat_id
+        if username:
+            user.username = username
+        if first_name:
+            user.first_name = first_name
+        if last_name:
+            user.last_name = last_name
+        
+        user.updated_at = datetime.utcnow()
+        
+        try:
+            self.db.commit()
+        except Exception as e:
+            self.db.rollback()
+            logger.error(f"Database error during binding confirmation: {e}")
+            return {"success": False, "error": "Database error"}
+        
+        # Create JWT token for bot
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        
+        # Remove code from Redis
+        redis_client.delete(cache_key)
+        
+        logger.info(
+            f"Telegram binding confirmed: user_id={user_id}, chat_id={chat_id}, "
+            f"username={username}"
+        )
+        
+        return {
+            "success": True,
+            "user_id": user.id,
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
+        }
+    
+    async def create_session(
+        self,
+        user_id: int,
+        device_id: Optional[str] = None,
+    ) -> tuple[str, str]:
+        """
+        Create session and issue tokens.
+        
+        **Returns:**
+        (access_token, refresh_token)
+        """
+        
+        user = self.db.query(User).filter_by(id=user_id).first()
+        if not user:
+            raise ValueError("User not found")
+        
+        # Create tokens
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        refresh_token = jwt_manager.create_refresh_token(user_id=user.id)
+        
+        # Store refresh token in Redis for validation
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = {
+            "user_id": user.id,
+            "device_id": device_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        # Refresh token valid for 30 days
+        redis_client.setex(
+            token_key,
+            86400 * 30,
+            json.dumps(token_data),
+        )
+        
+        # Update user activity
+        user.last_activity = datetime.utcnow()
+        self.db.commit()
+        
+        logger.info(f"Session created for user_id={user_id}")
+        
+        return access_token, refresh_token
+    
+    async def refresh_access_token(
+        self,
+        refresh_token: str,
+        user_id: int,
+    ) -> str:
+        """
+        Issue new access token using valid refresh token.
+        
+        **Flow:**
+        1. Check refresh token in Redis
+        2. Validate it belongs to user_id
+        3. Create new access token
+        4. Return new token (don't invalidate refresh token)
+        """
+        
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = redis_client.get(token_key)
+        
+        if not token_data:
+            logger.warning(f"Refresh token not found: {user_id}")
+            raise ValueError("Invalid refresh token")
+        
+        data = json.loads(token_data)
+        if data.get("user_id") != user_id:
+            logger.warning(f"Refresh token user mismatch: {user_id}")
+            raise ValueError("Token user mismatch")
+        
+        # Create new access token
+        access_token = jwt_manager.create_access_token(user_id=user_id)
+        
+        logger.info(f"Access token refreshed for user_id={user_id}")
+        
+        return access_token
+    
+    async def authenticate_telegram_user(self, chat_id: int) -> Optional[Dict[str, Any]]:
+        """
+        Get JWT token for Telegram user (bot authentication).
+        
+        **Flow:**
+        1. Bot queries: GET /auth/telegram/authenticate?chat_id=12345
+        2. Service finds user by telegram_id
+        3. Service creates/returns JWT
+        4. Bot stores JWT for API calls
+        
+        **Returns:**
+        {
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        } or None if not found
+        """
+        
+        user = self.db.query(User).filter_by(telegram_id=chat_id).first()
+        
+        if not user:
+            logger.warning(f"Telegram user not found: {chat_id}")
+            return None
+        
+        # Create JWT token
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        
+        logger.info(f"Telegram user authenticated: chat_id={chat_id}, user_id={user.id}")
+        
+        return {
+            "user_id": user.id,
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
+        }
diff --git a/.history/app/services/auth_service_20251210221526.py b/.history/app/services/auth_service_20251210221526.py
new file mode 100644
index 0000000..767887c
--- /dev/null
+++ b/.history/app/services/auth_service_20251210221526.py
@@ -0,0 +1,279 @@
+"""
+Authentication Service - User login, token management, Telegram binding
+"""
+from datetime import datetime, timedelta
+from typing import Optional, Dict, Any
+import secrets
+import json
+from sqlalchemy.orm import Session
+from app.db.models.user import User
+from app.security.jwt_manager import jwt_manager
+from app.core.config import settings
+import logging
+import redis
+
+
+logger = logging.getLogger(__name__)
+
+# Redis connection for caching binding codes
+redis_client = redis.from_url(settings.redis_url)
+
+
+class AuthService:
+    """Handles user authentication, token management, and Telegram binding"""
+    
+    TELEGRAM_BINDING_CODE_TTL = 600  # 10 minutes
+    BINDING_CODE_LENGTH = 24
+    
+    def __init__(self, db: Session):
+        self.db = db
+    
+    async def create_telegram_binding_code(self, chat_id: int) -> str:
+        """
+        Generate temporary code for Telegram user binding.
+        
+        **Flow:**
+        1. Bot calls /auth/telegram/start with chat_id
+        2. Service generates random code and stores in Redis
+        3. Bot builds link: https://bot.example.com/bind?code=XXX
+        4. Bot sends link to user in Telegram
+        5. User clicks link, authenticates, calls /auth/telegram/confirm
+        """
+        code = secrets.token_urlsafe(self.BINDING_CODE_LENGTH)
+        
+        # Store in Redis with TTL (10 minutes)
+        cache_key = f"binding_code:{code}"
+        cache_data = {
+            "chat_id": chat_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        redis_client.setex(
+            cache_key,
+            self.TELEGRAM_BINDING_CODE_TTL,
+            json.dumps(cache_data),
+        )
+        
+        logger.info(f"Generated Telegram binding code for chat_id={chat_id}")
+        return code
+    
+    async def confirm_telegram_binding(
+        self,
+        user_id: int,
+        chat_id: int,
+        code: str,
+        username: Optional[str] = None,
+        first_name: Optional[str] = None,
+        last_name: Optional[str] = None,
+    ) -> Dict[str, Any]:
+        """
+        Confirm Telegram binding after user clicks link.
+        
+        **Flow:**
+        1. User authenticates with email/password
+        2. User clicks binding link: /bind?code=XXX
+        3. Frontend calls /auth/telegram/confirm with code
+        4. Service validates code from Redis
+        5. Service links user.id with telegram_id
+        6. Service returns JWT for bot to use
+        
+        **Returns:**
+        {
+            "success": True,
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        }
+        
+        **Errors:**
+        - Code expired or not found
+        - Code chat_id mismatch
+        - User not found
+        - Binding already exists (user has different telegram_id)
+        """
+        
+        # Validate code from Redis
+        cache_key = f"binding_code:{code}"
+        cached_data = redis_client.get(cache_key)
+        
+        if not cached_data:
+            logger.warning(f"Binding code not found or expired: {code}")
+            return {"success": False, "error": "Code expired or invalid"}
+        
+        binding_data = json.loads(cached_data)
+        cached_chat_id = binding_data.get("chat_id")
+        
+        if cached_chat_id != chat_id:
+            logger.warning(
+                f"Chat ID mismatch: expected {cached_chat_id}, got {chat_id}"
+            )
+            return {"success": False, "error": "Code mismatch"}
+        
+        # Get user from database
+        user = self.db.query(User).filter_by(id=user_id).first()
+        if not user:
+            logger.error(f"User not found: {user_id}")
+            return {"success": False, "error": "User not found"}
+        
+        # Check if binding already exists (user already bound to different telegram)
+        if user.telegram_id and user.telegram_id != chat_id:
+            logger.warning(
+                f"User {user_id} already bound to telegram_id={user.telegram_id}, "
+                f"attempting to bind to {chat_id}"
+            )
+            return {
+                "success": False,
+                "error": f"Account already bound to different Telegram account (chat_id={user.telegram_id})"
+            }
+        
+        # Update user with Telegram info
+        user.telegram_id = chat_id
+        if username:
+            user.username = username
+        if first_name:
+            user.first_name = first_name
+        if last_name:
+            user.last_name = last_name
+        
+        user.updated_at = datetime.utcnow()
+        
+        try:
+            self.db.commit()
+        except Exception as e:
+            self.db.rollback()
+            logger.error(f"Database error during binding confirmation: {e}")
+            return {"success": False, "error": "Database error"}
+        
+        # Create JWT token for bot
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        
+        # Remove code from Redis
+        redis_client.delete(cache_key)
+        
+        logger.info(
+            f"Telegram binding confirmed: user_id={user_id}, chat_id={chat_id}, "
+            f"username={username}"
+        )
+        
+        return {
+            "success": True,
+            "user_id": user.id,
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
+        }
+    
+    async def create_session(
+        self,
+        user_id: int,
+        device_id: Optional[str] = None,
+    ) -> tuple[str, str]:
+        """
+        Create session and issue tokens.
+        
+        **Returns:**
+        (access_token, refresh_token)
+        """
+        
+        user = self.db.query(User).filter_by(id=user_id).first()
+        if not user:
+            raise ValueError("User not found")
+        
+        # Create tokens
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        refresh_token = jwt_manager.create_refresh_token(user_id=user.id)
+        
+        # Store refresh token in Redis for validation
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = {
+            "user_id": user.id,
+            "device_id": device_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        # Refresh token valid for 30 days
+        redis_client.setex(
+            token_key,
+            86400 * 30,
+            json.dumps(token_data),
+        )
+        
+        # Update user activity
+        user.last_activity = datetime.utcnow()
+        self.db.commit()
+        
+        logger.info(f"Session created for user_id={user_id}")
+        
+        return access_token, refresh_token
+    
+    async def refresh_access_token(
+        self,
+        refresh_token: str,
+        user_id: int,
+    ) -> str:
+        """
+        Issue new access token using valid refresh token.
+        
+        **Flow:**
+        1. Check refresh token in Redis
+        2. Validate it belongs to user_id
+        3. Create new access token
+        4. Return new token (don't invalidate refresh token)
+        """
+        
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = redis_client.get(token_key)
+        
+        if not token_data:
+            logger.warning(f"Refresh token not found: {user_id}")
+            raise ValueError("Invalid refresh token")
+        
+        data = json.loads(token_data)
+        if data.get("user_id") != user_id:
+            logger.warning(f"Refresh token user mismatch: {user_id}")
+            raise ValueError("Token user mismatch")
+        
+        # Create new access token
+        access_token = jwt_manager.create_access_token(user_id=user_id)
+        
+        logger.info(f"Access token refreshed for user_id={user_id}")
+        
+        return access_token
+    
+    async def authenticate_telegram_user(self, chat_id: int) -> Optional[Dict[str, Any]]:
+        """
+        Get JWT token for Telegram user (bot authentication).
+        
+        **Flow:**
+        1. Bot queries: GET /auth/telegram/authenticate?chat_id=12345
+        2. Service finds user by telegram_id
+        3. Service creates/returns JWT
+        4. Bot stores JWT for API calls
+        
+        **Returns:**
+        {
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        } or None if not found
+        """
+        
+        user = self.db.query(User).filter_by(telegram_id=chat_id).first()
+        
+        if not user:
+            logger.warning(f"Telegram user not found: {chat_id}")
+            return None
+        
+        # Create JWT token
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        
+        logger.info(f"Telegram user authenticated: chat_id={chat_id}, user_id={user.id}")
+        
+        return {
+            "user_id": user.id,
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
+        }
diff --git a/app/api/auth.py b/app/api/auth.py
index f408b69..8f5f4e8 100644
--- a/app/api/auth.py
+++ b/app/api/auth.py
@@ -225,6 +225,56 @@ async def telegram_binding_confirm(
     return TelegramBindingConfirmResponse(**result)
 
 
+@router.post(
+    "/telegram/store-token",
+    response_model=dict,
+    summary="Store JWT token for Telegram user (called after binding confirmation)",
+)
+async def telegram_store_token(
+    chat_id: int,
+    jwt_token: str,
+    db: Session = Depends(get_db),
+):
+    """
+    Store JWT token in Redis after successful binding confirmation.
+    
+    **Flow:**
+    1. User confirms binding via /telegram/confirm
+    2. Frontend receives jwt_token
+    3. Frontend calls this endpoint to cache token in bot's Redis
+    4. Bot can now use token for API calls
+    
+    **Usage:**
+    ```
+    POST /auth/telegram/store-token?chat_id=12345&jwt_token=eyJ...
+    ```
+    """
+    
+    import redis
+    
+    # Get Redis client from settings
+    from app.core.config import settings
+    redis_client = redis.from_url(settings.redis_url)
+    
+    # Validate JWT token structure
+    try:
+        jwt_manager.verify_token(jwt_token)
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=f"Invalid token: {e}")
+    
+    # Store JWT in Redis with 30-day TTL
+    cache_key = f"chat_id:{chat_id}:jwt"
+    redis_client.setex(cache_key, 86400 * 30, jwt_token)
+    
+    logger.info(f"JWT token stored for chat_id={chat_id}")
+    
+    return {
+        "success": True,
+        "message": "Token stored successfully",
+        "chat_id": chat_id,
+    }
+
+
 @router.post(
     "/telegram/authenticate",
     response_model=dict,
@@ -235,11 +285,11 @@ async def telegram_authenticate(
     db: Session = Depends(get_db),
 ):
     """
-    Get JWT token for Telegram user.
+    Get JWT token for Telegram user (bot authentication).
     
     **Usage in Bot:**
     ```python
-    # After user binding is confirmed
+    # Get token for authenticated user
     response = api.post("/auth/telegram/authenticate?chat_id=12345")
     jwt_token = response["jwt_token"]
     ```
@@ -254,6 +304,86 @@ async def telegram_authenticate(
     return result
 
 
+@router.post(
+    "/telegram/register",
+    response_model=dict,
+    summary="Create new user with Telegram binding",
+)
+async def telegram_register(
+    chat_id: int,
+    username: Optional[str] = None,
+    first_name: Optional[str] = None,
+    last_name: Optional[str] = None,
+    db: Session = Depends(get_db),
+):
+    """
+    Quick registration for new Telegram user.
+    
+    **Flow:**
+    1. Bot calls this endpoint on /start
+    2. Creates new User with telegram_id
+    3. Returns JWT for immediate API access
+    4. User can update email/password later
+    
+    **Usage in Bot:**
+    ```python
+    result = api.post(
+        "/auth/telegram/register",
+        params={
+            "chat_id": 12345,
+            "username": "john_doe",
+            "first_name": "John",
+            "last_name": "Doe",
+        }
+    )
+    jwt_token = result["jwt_token"]
+    ```
+    """
+    
+    from app.db.models.user import User
+    
+    # Check if user already exists
+    existing = db.query(User).filter_by(telegram_id=chat_id).first()
+    if existing:
+        service = AuthService(db)
+        result = await service.authenticate_telegram_user(chat_id=chat_id)
+        return {
+            **result,
+            "created": False,
+            "message": "User already exists",
+        }
+    
+    # Create new user
+    new_user = User(
+        telegram_id=chat_id,
+        username=username,
+        first_name=first_name,
+        last_name=last_name,
+        is_active=True,
+    )
+    
+    try:
+        db.add(new_user)
+        db.commit()
+        db.refresh(new_user)
+    except Exception as e:
+        db.rollback()
+        logger.error(f"Failed to create user: {e}")
+        raise HTTPException(status_code=400, detail="Failed to create user")
+    
+    # Create JWT
+    service = AuthService(db)
+    result = await service.authenticate_telegram_user(chat_id=chat_id)
+    
+    if result:
+        result["created"] = True
+        result["message"] = f"User created successfully (user_id={new_user.id})"
+    
+    logger.info(f"New Telegram user registered: chat_id={chat_id}, user_id={new_user.id}")
+    
+    return result or {"success": False, "error": "Failed to create user"}
+
+
 @router.post(
     "/logout",
     summary="Logout user",
diff --git a/app/bot/client.py b/app/bot/client.py
index 7aace3b..7643940 100644
--- a/app/bot/client.py
+++ b/app/bot/client.py
@@ -8,11 +8,12 @@ from typing import Optional, Dict, Any
 from decimal import Decimal
 import aiohttp
 import time
+import asyncio
+import json
+import redis
 from aiogram import Bot, Dispatcher, types, F
 from aiogram.filters import Command
 from aiogram.types import Message
-import redis
-import json
 from app.security.hmac_manager import hmac_manager
 
 
@@ -63,10 +64,16 @@ class TelegramBotClient:
         """
         /start - Begin Telegram binding process.
         
-        Flow:
-        1. Check if user already bound
-        2. If not: Generate binding code
-        3. Send link to user
+        **Flow:**
+        1. Check if user already bound (JWT in Redis)
+        2. If not: Generate binding code via API
+        3. Send binding link to user with code
+        
+        **After binding:**
+        - User clicks link and confirms
+        - User's browser calls POST /api/v1/auth/telegram/confirm
+        - Bot calls GET /api/v1/auth/telegram/authenticate?chat_id=XXXX
+        - Bot stores JWT in Redis for future API calls
         """
         chat_id = message.chat.id
         
@@ -75,70 +82,150 @@ class TelegramBotClient:
         existing_token = self.redis_client.get(jwt_key)
         
         if existing_token:
-            await message.answer("✅ You're already connected!\n\nUse /help for commands.")
+            await message.answer(
+                "✅ **You're already connected!**\n\n"
+                "Use /balance to check wallets\n"
+                "Use /add to add transactions\n"
+                "Use /help for all commands",
+                parse_mode="Markdown"
+            )
             return
         
         # Generate binding code
         try:
-            code = await self._api_call(
+            logger.info(f"Starting binding for chat_id={chat_id}")
+            
+            code_response = await self._api_call(
                 method="POST",
                 endpoint="/api/v1/auth/telegram/start",
                 data={"chat_id": chat_id},
                 use_jwt=False,
             )
             
-            binding_code = code.get("code")
+            binding_code = code_response.get("code")
+            if not binding_code:
+                raise ValueError("No code in response")
+            
+            # Store binding code in Redis for validation
+            # (expires in 10 minutes as per backend TTL)
+            binding_key = f"chat_id:{chat_id}:binding_code"
+            self.redis_client.setex(
+                binding_key,
+                600,
+                json.dumps({"code": binding_code, "created_at": datetime.utcnow().isoformat()})
+            )
+            
+            # Build binding link (replace with actual frontend URL)
+            # Example: https://yourapp.com/auth/telegram/confirm?code=XXX&chat_id=123
+            binding_url = (
+                f"https://your-finance-app.com/auth/telegram/confirm"
+                f"?code={binding_code}&chat_id={chat_id}"
+            )
             
             # Send binding link to user
-            binding_url = f"https://your-app.com/auth/telegram?code={binding_code}&chat_id={chat_id}"
-            
             await message.answer(
-                f"🔗 Click to bind your account:\n\n"
-                f"[Open Account Binding]({binding_url})\n\n"
-                f"Code expires in 10 minutes.",
-                parse_mode="Markdown"
+                f"🔗 **Click to bind your account:**\n\n"
+                f"[📱 Open Account Binding]({binding_url})\n\n"
+                f"⏱ Code expires in 10 minutes\n\n"
+                f"❓ Already have an account? Just log in and click the link.",
+                parse_mode="Markdown",
+                disable_web_page_preview=True,
             )
-        
+            
+            logger.info(f"Binding code sent to chat_id={chat_id}")
+            
         except Exception as e:
-            logger.error(f"Binding start error: {e}")
-            await message.answer("❌ Binding failed. Try again later.")
+            logger.error(f"Binding start error: {e}", exc_info=True)
+            await message.answer("❌ Could not start binding. Try again later.")
     
     # ========== Handler: /balance ==========
     async def cmd_balance(self, message: Message):
         """
         /balance - Show wallet balances.
         
-        Requires:
+        **Requires:**
         - User must be bound (JWT token in Redis)
+        - JWT obtained via binding confirmation
         - API call with JWT auth
+        
+        **Try:**
+        Use /start to bind your account first
         """
         chat_id = message.chat.id
         
-        # Get JWT token
+        # Get JWT token from Redis
         jwt_token = self._get_user_jwt(chat_id)
+        
         if not jwt_token:
-            await message.answer("❌ Not connected. Use /start to bind your account.")
+            # Try to authenticate if user exists
+            try:
+                auth_result = await self._api_call(
+                    method="POST",
+                    endpoint="/api/v1/auth/telegram/authenticate",
+                    params={"chat_id": chat_id},
+                    use_jwt=False,
+                )
+                
+                if auth_result and auth_result.get("jwt_token"):
+                    jwt_token = auth_result["jwt_token"]
+                    
+                    # Store in Redis for future use
+                    self.redis_client.setex(
+                        f"chat_id:{chat_id}:jwt",
+                        86400 * 30,  # 30 days
+                        jwt_token
+                    )
+                    
+                    logger.info(f"JWT obtained for chat_id={chat_id}")
+                    
+            except Exception as e:
+                logger.warning(f"Could not authenticate user: {e}")
+        
+        if not jwt_token:
+            await message.answer(
+                "❌ Not connected yet\n\n"
+                "Use /start to bind your Telegram account first",
+                parse_mode="Markdown"
+            )
             return
         
         try:
-            # Call API: GET /api/v1/wallets/summary?family_id=1
-            wallets = await self._api_call(
+            # Call API: GET /api/v1/accounts?family_id=1
+            accounts_response = await self._api_call(
                 method="GET",
-                endpoint="/api/v1/wallets/summary",
+                endpoint="/api/v1/accounts",
                 jwt_token=jwt_token,
-                params={"family_id": 1},  # TODO: Get from context
+                params={"family_id": 1},  # TODO: Get from user context
+                use_jwt=True,
             )
             
+            accounts = accounts_response if isinstance(accounts_response, list) else accounts_response.get("accounts", [])
+            
+            if not accounts:
+                await message.answer(
+                    "💰 No accounts found\n\n"
+                    "Contact support to set up your first account",
+                    parse_mode="Markdown"
+                )
+                return
+            
             # Format response
-            response = "💰 **Your Wallets:**\n\n"
-            for wallet in wallets:
-                response += f"📊 {wallet['name']}: ${wallet['balance']}\n"
+            response = "💰 **Your Accounts:**\n\n"
+            for account in accounts[:10]:  # Limit to 10
+                balance = account.get("balance", 0)
+                currency = account.get("currency", "USD")
+                response += f"📊 {account.get('name', 'Account')}: {balance} {currency}\n"
             
             await message.answer(response, parse_mode="Markdown")
+            logger.info(f"Balance shown for chat_id={chat_id}")
         
         except Exception as e:
-            logger.error(f"Balance fetch error: {e}")
-            await message.answer("❌ Could not fetch balance. Try again later.")
+            logger.error(f"Balance fetch error for {chat_id}: {e}", exc_info=True)
+            await message.answer(
+                "❌ Could not fetch balance\n\n"
+                "Try again later or contact support",
+                parse_mode="Markdown"
+            )
     
     # ========== Handler: /add (Create Transaction) ==========
     async def cmd_add_transaction(self, message: Message):
@@ -230,16 +317,51 @@ class TelegramBotClient:
     
     # ========== Handler: /help ==========
     async def cmd_help(self, message: Message):
-        """Show available commands"""
-        help_text = """
-🤖 **Finance Bot Commands:**
+        """Show available commands and binding instructions"""
+        chat_id = message.chat.id
+        jwt_key = f"chat_id:{chat_id}:jwt"
+        is_bound = self.redis_client.get(jwt_key) is not None
+        
+        if is_bound:
+            help_text = """🤖 **Finance Bot - Commands:**
 
-/start - Bind your Telegram account
-/balance - Show wallet balances
+🔗 **Account**
+/start - Re-bind account (if needed)
+/balance - Show all account balances
+/settings - Account settings
+
+💰 **Transactions**
 /add - Add new transaction
-/reports - View reports (daily/weekly/monthly)
+/recent - Last 10 transactions
+/category - View by category
+
+📊 **Reports**
+/daily - Daily spending report
+/weekly - Weekly summary
+/monthly - Monthly summary
+
+❓ **Help**
 /help - This message
 """
+        else:
+            help_text = """🤖 **Finance Bot - Getting Started**
+
+**Step 1: Bind Your Account**
+/start - Click the link to bind your Telegram account
+
+**Step 2: Login**
+Use your email and password on the binding page
+
+**Step 3: Done!**
+- /balance - View your accounts
+- /add - Create transactions
+- /help - See all commands
+
+🔒 **Privacy**
+Your data is encrypted and secure
+Only you can access your accounts
+"""
+        
         await message.answer(help_text, parse_mode="Markdown")
     
     # ========== API Communication Methods ==========
@@ -253,29 +375,40 @@ class TelegramBotClient:
         use_jwt: bool = True,
     ) -> Dict[str, Any]:
         """
-        Make HTTP request to API with proper auth headers.
+        Make HTTP request to API with proper authentication headers.
         
-        Headers:
-        - Authorization: Bearer <jwt_token>
+        **Headers:**
+        - Authorization: Bearer <jwt_token> (if use_jwt=True)
         - X-Client-Id: telegram_bot
-        - X-Signature: HMAC_SHA256(...)
+        - X-Signature: HMAC_SHA256(method + endpoint + timestamp + body)
         - X-Timestamp: unix timestamp
+        
+        **Auth Flow:**
+        1. For public endpoints (binding): use_jwt=False, no Authorization header
+        2. For user endpoints: use_jwt=True, pass jwt_token
+        3. All calls include HMAC signature for integrity
+        
+        **Raises:**
+        - Exception: API error with status code and message
         """
         
         if not self.session:
             raise RuntimeError("Session not initialized")
         
+        # Build URL
+        url = f"{self.api_base_url}{endpoint}"
+        
         # Build headers
         headers = {
             "X-Client-Id": "telegram_bot",
             "Content-Type": "application/json",
         }
         
-        # Add JWT if provided
+        # Add JWT if provided and requested
         if use_jwt and jwt_token:
             headers["Authorization"] = f"Bearer {jwt_token}"
         
-        # Add HMAC signature
+        # Add HMAC signature for integrity verification
         timestamp = int(time.time())
         headers["X-Timestamp"] = str(timestamp)
         
@@ -288,20 +421,39 @@ class TelegramBotClient:
         headers["X-Signature"] = signature
         
         # Make request
-        url = f"{self.api_base_url}{endpoint}"
-        
-        async with self.session.request(
-            method=method,
-            url=url,
-            json=data,
-            params=params,
-            headers=headers,
-        ) as response:
-            if response.status >= 400:
-                error_text = await response.text()
-                raise Exception(f"API error {response.status}: {error_text}")
-            
-            return await response.json()
+        try:
+            async with self.session.request(
+                method=method,
+                url=url,
+                json=data,
+                params=params,
+                headers=headers,
+                timeout=aiohttp.ClientTimeout(total=10),
+            ) as response:
+                response_text = await response.text()
+                
+                if response.status >= 400:
+                    logger.error(
+                        f"API error {response.status}: {endpoint}\n"
+                        f"Response: {response_text[:500]}"
+                    )
+                    raise Exception(
+                        f"API error {response.status}: {response_text[:200]}"
+                    )
+                
+                # Parse JSON response
+                try:
+                    return json.loads(response_text)
+                except json.JSONDecodeError:
+                    logger.warning(f"Invalid JSON response from {endpoint}: {response_text}")
+                    return {"data": response_text}
+                    
+        except asyncio.TimeoutError:
+            logger.error(f"API timeout: {endpoint}")
+            raise Exception("Request timeout")
+        except Exception as e:
+            logger.error(f"API call failed ({method} {endpoint}): {e}")
+            raise
     
     def _get_user_jwt(self, chat_id: int) -> Optional[str]:
         """Get JWT token for chat_id from Redis"""
diff --git a/app/security/middleware.py b/app/security/middleware.py
index 81feffa..adf2e2f 100644
--- a/app/security/middleware.py
+++ b/app/security/middleware.py
@@ -86,7 +86,15 @@ class HMACVerificationMiddleware(BaseHTTPMiddleware):
     
     async def dispatch(self, request: Request, call_next: Callable) -> Any:
         # Skip verification for public endpoints
-        public_paths = ["/health", "/docs", "/openapi.json", "/api/v1/auth/login", "/api/v1/auth/telegram/start"]
+        public_paths = [
+            "/health",
+            "/docs",
+            "/openapi.json",
+            "/api/v1/auth/login",
+            "/api/v1/auth/telegram/start",
+            "/api/v1/auth/telegram/register",
+            "/api/v1/auth/telegram/authenticate",
+        ]
         if request.url.path in public_paths:
             return await call_next(request)
         
@@ -153,7 +161,15 @@ class JWTAuthenticationMiddleware(BaseHTTPMiddleware):
     
     async def dispatch(self, request: Request, call_next: Callable) -> Any:
         # Skip auth for public endpoints
-        public_paths = ["/health", "/docs", "/openapi.json", "/api/v1/auth/login", "/api/v1/auth/telegram/start"]
+        public_paths = [
+            "/health",
+            "/docs",
+            "/openapi.json",
+            "/api/v1/auth/login",
+            "/api/v1/auth/telegram/start",
+            "/api/v1/auth/telegram/register",
+            "/api/v1/auth/telegram/authenticate",
+        ]
         if request.url.path in public_paths:
             return await call_next(request)
         
diff --git a/app/services/auth_service.py b/app/services/auth_service.py
index b013242..767887c 100644
--- a/app/services/auth_service.py
+++ b/app/services/auth_service.py
@@ -1,20 +1,26 @@
 """
-Authentication Service - User login, token management
+Authentication Service - User login, token management, Telegram binding
 """
 from datetime import datetime, timedelta
 from typing import Optional, Dict, Any
 import secrets
+import json
 from sqlalchemy.orm import Session
-from app.db.models import User
+from app.db.models.user import User
 from app.security.jwt_manager import jwt_manager
+from app.core.config import settings
 import logging
+import redis
 
 
 logger = logging.getLogger(__name__)
 
+# Redis connection for caching binding codes
+redis_client = redis.from_url(settings.redis_url)
+
 
 class AuthService:
-    """Handles user authentication and token management"""
+    """Handles user authentication, token management, and Telegram binding"""
     
     TELEGRAM_BINDING_CODE_TTL = 600  # 10 minutes
     BINDING_CODE_LENGTH = 24
@@ -23,41 +29,251 @@ class AuthService:
         self.db = db
     
     async def create_telegram_binding_code(self, chat_id: int) -> str:
-        """Generate temporary code for Telegram user binding"""
+        """
+        Generate temporary code for Telegram user binding.
+        
+        **Flow:**
+        1. Bot calls /auth/telegram/start with chat_id
+        2. Service generates random code and stores in Redis
+        3. Bot builds link: https://bot.example.com/bind?code=XXX
+        4. Bot sends link to user in Telegram
+        5. User clicks link, authenticates, calls /auth/telegram/confirm
+        """
         code = secrets.token_urlsafe(self.BINDING_CODE_LENGTH)
+        
+        # Store in Redis with TTL (10 minutes)
+        cache_key = f"binding_code:{code}"
+        cache_data = {
+            "chat_id": chat_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        redis_client.setex(
+            cache_key,
+            self.TELEGRAM_BINDING_CODE_TTL,
+            json.dumps(cache_data),
+        )
+        
         logger.info(f"Generated Telegram binding code for chat_id={chat_id}")
         return code
     
-    async def login(self, email: str, password: str) -> Dict[str, Any]:
-        """Authenticate user with email/password"""
+    async def confirm_telegram_binding(
+        self,
+        user_id: int,
+        chat_id: int,
+        code: str,
+        username: Optional[str] = None,
+        first_name: Optional[str] = None,
+        last_name: Optional[str] = None,
+    ) -> Dict[str, Any]:
+        """
+        Confirm Telegram binding after user clicks link.
         
-        user = self.db.query(User).filter_by(email=email).first()
+        **Flow:**
+        1. User authenticates with email/password
+        2. User clicks binding link: /bind?code=XXX
+        3. Frontend calls /auth/telegram/confirm with code
+        4. Service validates code from Redis
+        5. Service links user.id with telegram_id
+        6. Service returns JWT for bot to use
+        
+        **Returns:**
+        {
+            "success": True,
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        }
+        
+        **Errors:**
+        - Code expired or not found
+        - Code chat_id mismatch
+        - User not found
+        - Binding already exists (user has different telegram_id)
+        """
+        
+        # Validate code from Redis
+        cache_key = f"binding_code:{code}"
+        cached_data = redis_client.get(cache_key)
+        
+        if not cached_data:
+            logger.warning(f"Binding code not found or expired: {code}")
+            return {"success": False, "error": "Code expired or invalid"}
+        
+        binding_data = json.loads(cached_data)
+        cached_chat_id = binding_data.get("chat_id")
+        
+        if cached_chat_id != chat_id:
+            logger.warning(
+                f"Chat ID mismatch: expected {cached_chat_id}, got {chat_id}"
+            )
+            return {"success": False, "error": "Code mismatch"}
+        
+        # Get user from database
+        user = self.db.query(User).filter_by(id=user_id).first()
+        if not user:
+            logger.error(f"User not found: {user_id}")
+            return {"success": False, "error": "User not found"}
+        
+        # Check if binding already exists (user already bound to different telegram)
+        if user.telegram_id and user.telegram_id != chat_id:
+            logger.warning(
+                f"User {user_id} already bound to telegram_id={user.telegram_id}, "
+                f"attempting to bind to {chat_id}"
+            )
+            return {
+                "success": False,
+                "error": f"Account already bound to different Telegram account (chat_id={user.telegram_id})"
+            }
+        
+        # Update user with Telegram info
+        user.telegram_id = chat_id
+        if username:
+            user.username = username
+        if first_name:
+            user.first_name = first_name
+        if last_name:
+            user.last_name = last_name
+        
+        user.updated_at = datetime.utcnow()
+        
+        try:
+            self.db.commit()
+        except Exception as e:
+            self.db.rollback()
+            logger.error(f"Database error during binding confirmation: {e}")
+            return {"success": False, "error": "Database error"}
+        
+        # Create JWT token for bot
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        
+        # Remove code from Redis
+        redis_client.delete(cache_key)
+        
+        logger.info(
+            f"Telegram binding confirmed: user_id={user_id}, chat_id={chat_id}, "
+            f"username={username}"
+        )
+        
+        return {
+            "success": True,
+            "user_id": user.id,
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
+        }
+    
+    async def create_session(
+        self,
+        user_id: int,
+        device_id: Optional[str] = None,
+    ) -> tuple[str, str]:
+        """
+        Create session and issue tokens.
+        
+        **Returns:**
+        (access_token, refresh_token)
+        """
+        
+        user = self.db.query(User).filter_by(id=user_id).first()
         if not user:
             raise ValueError("User not found")
         
-        # In production: verify password with bcrypt
-        # For MVP: simple comparison (change this!)
+        # Create tokens
+        access_token = jwt_manager.create_access_token(user_id=user.id)
+        refresh_token = jwt_manager.create_refresh_token(user_id=user.id)
         
+        # Store refresh token in Redis for validation
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = {
+            "user_id": user.id,
+            "device_id": device_id,
+            "created_at": datetime.utcnow().isoformat(),
+        }
+        
+        # Refresh token valid for 30 days
+        redis_client.setex(
+            token_key,
+            86400 * 30,
+            json.dumps(token_data),
+        )
+        
+        # Update user activity
+        user.last_activity = datetime.utcnow()
+        self.db.commit()
+        
+        logger.info(f"Session created for user_id={user_id}")
+        
+        return access_token, refresh_token
+    
+    async def refresh_access_token(
+        self,
+        refresh_token: str,
+        user_id: int,
+    ) -> str:
+        """
+        Issue new access token using valid refresh token.
+        
+        **Flow:**
+        1. Check refresh token in Redis
+        2. Validate it belongs to user_id
+        3. Create new access token
+        4. Return new token (don't invalidate refresh token)
+        """
+        
+        token_key = f"refresh_token:{refresh_token}"
+        token_data = redis_client.get(token_key)
+        
+        if not token_data:
+            logger.warning(f"Refresh token not found: {user_id}")
+            raise ValueError("Invalid refresh token")
+        
+        data = json.loads(token_data)
+        if data.get("user_id") != user_id:
+            logger.warning(f"Refresh token user mismatch: {user_id}")
+            raise ValueError("Token user mismatch")
+        
+        # Create new access token
+        access_token = jwt_manager.create_access_token(user_id=user_id)
+        
+        logger.info(f"Access token refreshed for user_id={user_id}")
+        
+        return access_token
+    
+    async def authenticate_telegram_user(self, chat_id: int) -> Optional[Dict[str, Any]]:
+        """
+        Get JWT token for Telegram user (bot authentication).
+        
+        **Flow:**
+        1. Bot queries: GET /auth/telegram/authenticate?chat_id=12345
+        2. Service finds user by telegram_id
+        3. Service creates/returns JWT
+        4. Bot stores JWT for API calls
+        
+        **Returns:**
+        {
+            "user_id": 123,
+            "jwt_token": "eyJ...",
+            "expires_at": "2025-12-11T12:00:00",
+        } or None if not found
+        """
+        
+        user = self.db.query(User).filter_by(telegram_id=chat_id).first()
+        
+        if not user:
+            logger.warning(f"Telegram user not found: {chat_id}")
+            return None
+        
+        # Create JWT token
         access_token = jwt_manager.create_access_token(user_id=user.id)
         
-        logger.info(f"User {user.id} logged in")
+        logger.info(f"Telegram user authenticated: chat_id={chat_id}, user_id={user.id}")
         
         return {
             "user_id": user.id,
-            "access_token": access_token,
-            "token_type": "bearer",
+            "jwt_token": access_token,
+            "expires_at": (
+                datetime.utcnow() + timedelta(hours=24)
+            ).isoformat(),
         }
-    
-    async def refresh_token(self, refresh_token: str) -> Dict[str, Any]:
-        """Refresh access token"""
-        
-        try:
-            payload = jwt_manager.verify_token(refresh_token)
-            new_token = jwt_manager.create_access_token(user_id=payload.user_id)
-            return {
-                "access_token": new_token,
-                "token_type": "bearer",
-            }
-        except Exception as e:
-            logger.error(f"Token refresh failed: {e}")
-            raise ValueError("Invalid refresh token")