feat: add production deployment configs

- PM2 cluster mode (2 API workers + 1 Next.js)
- Nginx reverse proxy with SSL, rate limiting, security headers
- Automated backup script with daily/weekly rotation
- PostgreSQL production tuning script (300 connections, 4GB shared_buffers)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ecosystem.config.js

@@ -2,35 +2,33 @@ module.exports = {
   apps: [
     {
       name: 'horux-api',
+      script: 'dist/index.js',
       cwd: '/root/Horux/apps/api',
-      script: 'pnpm',
-      args: 'dev',
-      interpreter: 'none',
-      watch: false,
+      instances: 2,
+      exec_mode: 'cluster',
       autorestart: true,
-      restart_delay: 10000,
-      max_restarts: 3,
+      max_memory_restart: '1G',
       kill_timeout: 5000,
+      listen_timeout: 10000,
       env: {
-        NODE_ENV: 'development',
-        PORT: 4000
-      }
+        NODE_ENV: 'production',
+        PORT: 4000,
+      },
     },
     {
       name: 'horux-web',
+      script: 'node_modules/.bin/next',
+      args: 'start',
       cwd: '/root/Horux/apps/web',
-      script: 'pnpm',
-      args: 'dev',
-      interpreter: 'none',
-      watch: false,
+      instances: 1,
+      exec_mode: 'fork',
       autorestart: true,
-      restart_delay: 10000,
-      max_restarts: 3,
+      max_memory_restart: '512M',
       kill_timeout: 5000,
       env: {
-        NODE_ENV: 'development',
-        PORT: 3000
-      }
-    }
-  ]
+        NODE_ENV: 'production',
+        PORT: 3000,
+      },
+    },
+  ],
 };