feat: Add PM2 process manager configuration

- Add ecosystem.config.js with auto-restart settings
- Add PM2 management scripts to package.json
- Create PM2.md documentation
- Update .gitignore to exclude logs
- Create logs directory for PM2 output

Scripts available:
- npm run pm2:start - Start with PM2
- npm run pm2:stop - Stop process
- npm run pm2:restart - Restart process
- npm run pm2:logs - View logs
- npm run pm2:status - Check status
- npm run pm2:monit - Real-time monitoring

ecosystem.config.js

@@ -0,0 +1,22 @@
+module.exports = {
+    apps: [{
+        name: 'lpd-gerana-webcam',
+        script: './server.js',
+        instances: 1,
+        exec_mode: 'fork',
+        autorestart: true,
+        watch: false,
+        max_memory_restart: '500M',
+        env: {
+            NODE_ENV: 'production',
+            PORT: 3000
+        },
+        error_file: './logs/pm2-error.log',
+        out_file: './logs/pm2-out.log',
+        log_date_format: 'YYYY-MM-DD HH:mm:ss Z',
+        merge_logs: true,
+        min_uptime: '10s',
+        max_restarts: 10,
+        restart_delay: 4000
+    }]
+};