feat: Реализован полный CRUD для админ-панели и улучшена функциональность

- Portfolio CRUD: добавление, редактирование, удаление, переключение публикации
- Services CRUD: полное управление услугами с возможностью активации/деактивации
- Banner system: новая модель Banner с CRUD операциями и аналитикой кликов
- Telegram integration: расширенные настройки бота, обнаружение чатов, отправка сообщений
- Media management: улучшенная загрузка файлов с оптимизацией изображений и превью
- UI improvements: обновлённые админ-панели с rich-text редактором и drag&drop загрузкой
- Database: добавлена таблица banners с полями для баннеров и аналитики

routes/portfolio.js

@@ -1,6 +1,7 @@
 const express = require('express');
 const router = express.Router();
-const Portfolio = require('../models/Portfolio');
+const { Portfolio } = require('../models');
+const { Op } = require('sequelize');
 
 // Get all portfolio items
 router.get('/', async (req, res) => {
@@ -13,28 +14,37 @@ router.get('/', async (req, res) => {
     const featured = req.query.featured;
 
     // Build query
-    let query = { isPublished: true };
+    let whereClause = { isPublished: true };
     
     if (category && category !== 'all') {
-      query.category = category;
+      whereClause.category = category;
     }
     
     if (featured === 'true') {
-      query.featured = true;
+      whereClause.featured = true;
     }
     
     if (search) {
-      query.$text = { $search: search };
+      whereClause = {
+        ...whereClause,
+        [Op.or]: [
+          { title: { [Op.iLike]: `%${search}%` } },
+          { description: { [Op.iLike]: `%${search}%` } },
+          { shortDescription: { [Op.iLike]: `%${search}%` } }
+        ]
+      };
     }
 
     // Get portfolio items
     const [portfolio, total] = await Promise.all([
-      Portfolio.find(query)
-        .sort({ featured: -1, publishedAt: -1 })
-        .skip(skip)
-        .limit(limit)
-        .select('title shortDescription category technologies images status publishedAt viewCount'),
-      Portfolio.countDocuments(query)
+      Portfolio.findAll({
+        where: whereClause,
+        order: [['featured', 'DESC'], ['publishedAt', 'DESC']],
+        offset: skip,
+        limit: limit,
+        attributes: ['id', 'title', 'shortDescription', 'category', 'technologies', 'images', 'status', 'publishedAt', 'viewCount']
+      }),
+      Portfolio.count({ where: whereClause })
     ]);
 
     const totalPages = Math.ceil(total / limit);
@@ -63,7 +73,7 @@ router.get('/', async (req, res) => {
 // Get single portfolio item
 router.get('/:id', async (req, res) => {
   try {
-    const portfolio = await Portfolio.findById(req.params.id);
+    const portfolio = await Portfolio.findByPk(req.params.id);
     
     if (!portfolio || !portfolio.isPublished) {
       return res.status(404).json({
@@ -77,13 +87,15 @@ router.get('/:id', async (req, res) => {
     await portfolio.save();
 
     // Get related projects
-    const relatedProjects = await Portfolio.find({
-      _id: { $ne: portfolio._id },
-      category: portfolio.category,
-      isPublished: true
-    })
-    .select('title shortDescription images')
-    .limit(4);
+    const relatedProjects = await Portfolio.findAll({
+      where: {
+        id: { [Op.ne]: portfolio.id },
+        category: portfolio.category,
+        isPublished: true
+      },
+      attributes: ['id', 'title', 'shortDescription', 'images'],
+      limit: 3
+    });
 
     res.json({
       success: true,
@@ -131,7 +143,7 @@ router.get('/meta/categories', async (req, res) => {
 // Like portfolio item
 router.post('/:id/like', async (req, res) => {
   try {
-    const portfolio = await Portfolio.findById(req.params.id);
+    const portfolio = await Portfolio.findByPk(req.params.id);
     
     if (!portfolio || !portfolio.isPublished) {
       return res.status(404).json({
@@ -162,21 +174,22 @@ router.get('/search/:term', async (req, res) => {
     const searchTerm = req.params.term;
     const limit = parseInt(req.query.limit) || 10;
 
-    const portfolio = await Portfolio.find({
-      $and: [
-        { isPublished: true },
-        {
-          $or: [
-            { title: { $regex: searchTerm, $options: 'i' } },
-            { description: { $regex: searchTerm, $options: 'i' } },
-            { technologies: { $in: [new RegExp(searchTerm, 'i')] } }
-          ]
-        }
-      ]
-    })
-    .select('title shortDescription category images')
-    .sort({ featured: -1, publishedAt: -1 })
-    .limit(limit);
+    const portfolio = await Portfolio.findAll({
+      where: {
+        [Op.and]: [
+          { isPublished: true },
+          {
+            [Op.or]: [
+              { title: { [Op.iLike]: `%${searchTerm}%` } },
+              { description: { [Op.iLike]: `%${searchTerm}%` } },
+              { technologies: { [Op.contains]: [searchTerm] } }
+            ]
+          }
+        ]
+      },
+      attributes: ['id', 'title', 'shortDescription', 'images', 'category'],
+      limit: limit
+    });
 
     res.json({
       success: true,