feat: Single-port deployment with improved error handling and SvelteKit static build

- Frontend now uses @sveltejs/adapter-static for production builds
- Backend serves both API and static files from single port (originally port 3000)
- Removed all throw statements from services to avoid Elysia prototype errors
- Fixed favicon serving and SvelteKit assets path handling
- Added ecosystem.config.js for PM2 process management
- Comprehensive deployment documentation (PM2 + HAProxy)
- Updated README with single-port architecture
- Created start.sh script for easy production start

ecosystem.config.js

@@ -0,0 +1,22 @@
+module.exports = {
+  apps: [
+    {
+      name: 'award-backend',
+      script: 'src/backend/index.js',
+      interpreter: 'bun',
+      cwd: '/path/to/award',
+      env: {
+        NODE_ENV: 'production',
+        PORT: 3001
+      },
+      instances: 1,
+      exec_mode: 'fork',
+      autorestart: true,
+      watch: false,
+      max_memory_restart: '500M',
+      error_file: './logs/backend-error.log',
+      out_file: './logs/backend-out.log',
+      log_date_format: 'YYYY-MM-DD HH:mm:ss Z'
+    }
+  ]
+};