Initial commit: Korea Tourism Agency website with AdminJS

- Full-stack Node.js/Express application with PostgreSQL
- Modern ES modules architecture
- AdminJS admin panel with Sequelize ORM
- Tourism routes, guides, articles, bookings management
- Responsive Bootstrap 5 frontend
- Docker containerization with docker-compose
- Complete database schema with migrations
- Authentication system for admin panel
- Dynamic placeholder images for tour categories

public/images/placeholders/default-guide.svg

@@ -0,0 +1,43 @@
+<!-- Korea Tourism Agency - Guide Placeholder SVG -->
+<svg width="300" height="300" xmlns="http://www.w3.org/2000/svg">
+  <!-- Gradient Background -->
+  <defs>
+    <linearGradient id="guideGradient" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" style="stop-color:#f3f4f6;stop-opacity:1" />
+      <stop offset="100%" style="stop-color:#e5e7eb;stop-opacity:1" />
+    </linearGradient>
+  </defs>
+  
+  <!-- Background -->
+  <rect width="100%" height="100%" fill="url(#guideGradient)"/>
+  
+  <!-- Guide Icon -->
+  <g transform="translate(150,150)">
+    <!-- Head -->
+    <circle cx="0" cy="-40" r="25" fill="#2563eb"/>
+    
+    <!-- Body -->
+    <rect x="-20" y="-15" width="40" height="60" rx="10" fill="#3b82f6"/>
+    
+    <!-- Arms -->
+    <rect x="-30" y="-10" width="15" height="40" rx="7" fill="#2563eb"/>
+    <rect x="15" y="-10" width="15" height="40" rx="7" fill="#2563eb"/>
+    
+    <!-- Legs -->
+    <rect x="-15" y="45" width="12" height="30" rx="6" fill="#1e40af"/>
+    <rect x="3" y="45" width="12" height="30" rx="6" fill="#1e40af"/>
+    
+    <!-- Korean Flag Badge -->
+    <rect x="8" y="5" width="12" height="8" fill="#c41e3a"/>
+    <rect x="8" y="5" width="6" height="4" fill="white"/>
+    <rect x="8" y="9" width="6" height="4" fill="#003478"/>
+    
+    <!-- Guide Flag -->
+    <rect x="25" y="-25" width="3" height="40" fill="#8b5cf6"/>
+    <rect x="28" y="-25" width="20" height="12" fill="#a855f7"/>
+  </g>
+  
+  <!-- Korean Text -->
+  <text x="150" y="250" font-family="Arial, sans-serif" font-size="18" font-weight="bold" text-anchor="middle" fill="#374151">가이드</text>
+  <text x="150" y="270" font-family="Arial, sans-serif" font-size="14" text-anchor="middle" fill="#6b7280">Professional Guide</text>
+</svg>