feat: add PM2 configuration and deployment setup for remote server

- Add Makefile with convenient PM2 commands for development and production
- Add ecosystem.config.js with production/staging/dev environment configurations
- Add comprehensive PM2-GUIDE.md documentation for deployment
- Update package.json with PM2-specific npm scripts
- Fix Chrome extension URL handling to omit standard ports (443/80)
- Hide embedding model and semantic engine sections in popup UI

app/remote-server/ecosystem.config.js

@@ -0,0 +1,95 @@
+module.exports = {
+  apps: [
+    {
+      name: 'mcp-remote-server',
+      script: 'dist/index.js',
+      cwd: __dirname,
+      instances: 1,
+      autorestart: true,
+      watch: false,
+      max_memory_restart: '1G',
+      env: {
+        NODE_ENV: 'production',
+        PORT: 3040,
+        HOST: '0.0.0.0',
+        DOMAIN: 'https://mcp-browser.qubecare.ai',
+      },
+      env_development: {
+        NODE_ENV: 'development',
+        PORT: 3040,
+        HOST: '0.0.0.0',
+        DOMAIN: 'http://localhost:3040',
+      },
+      env_staging: {
+        NODE_ENV: 'staging',
+        PORT: 3040,
+        HOST: '0.0.0.0',
+        DOMAIN: 'https://staging-mcp-browser.qubecare.ai',
+      },
+      // Logging configuration
+      log_file: './logs/combined.log',
+      out_file: './logs/out.log',
+      error_file: './logs/error.log',
+      log_date_format: 'YYYY-MM-DD HH:mm:ss Z',
+
+      // Process management
+      min_uptime: '10s',
+      max_restarts: 10,
+      restart_delay: 4000,
+
+      // Advanced PM2 features
+      exec_mode: 'fork',
+      kill_timeout: 5000,
+      listen_timeout: 3000,
+
+      // Health monitoring
+      health_check_grace_period: 3000,
+
+      // Environment-specific overrides
+      merge_logs: true,
+
+      // Custom startup script (optional)
+      pre_start: 'npm run build',
+
+      // Post-deployment hooks (optional)
+      post_start: 'echo "MCP Remote Server started successfully"',
+
+      // Graceful shutdown
+      shutdown_with_message: true,
+
+      // Source map support for better error traces
+      source_map_support: true,
+
+      // Node.js specific options
+      node_args: '--max-old-space-size=1024',
+
+      // Custom environment variables from .env file
+      env_file: '.env',
+    },
+  ],
+
+  // Deployment configuration (optional)
+  deploy: {
+    production: {
+      user: 'deploy',
+      host: 'your-server.com',
+      ref: 'origin/main',
+      repo: 'git@github.com:your-username/your-repo.git',
+      path: '/var/www/mcp-remote-server',
+      'pre-deploy-local': '',
+      'post-deploy':
+        'npm install && npm run build && pm2 reload ecosystem.config.js --env production',
+      'pre-setup': '',
+    },
+    staging: {
+      user: 'deploy',
+      host: 'staging-server.com',
+      ref: 'origin/develop',
+      repo: 'git@github.com:your-username/your-repo.git',
+      path: '/var/www/mcp-remote-server-staging',
+      'pre-deploy-local': '',
+      'post-deploy': 'npm install && npm run build && pm2 reload ecosystem.config.js --env staging',
+      'pre-setup': '',
+    },
+  },
+};