feat: add SSH metrics collection with ssh2 library and auto-scheduler

Replace sshpass with ssh2 Node.js library for reliable SSH connections.
Add all 6 servers (CWP, EasyPanel, MCP Hub, Meet, WhatsApp, WhatSMS).
Add 5-minute auto-collection scheduler in production mode.

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

api/server.ts

@@ -13,6 +13,7 @@ import diagnosticRouter from './routes/diagnostic.js'
 import hetznerRouter from './routes/hetzner.js'
 import wpMonitorRouter from './routes/wp-monitor.js'
 import serverMetricsRouter from './routes/server-metrics.js'
+import { collectAllServerMetrics } from './services/server-metrics.js'
 
 const __filename = fileURLToPath(import.meta.url)
 const __dirname = path.dirname(__filename)
@@ -65,10 +66,29 @@ app.use((err: any, _req: express.Request, res: express.Response, _next: express.
 // Start server
 app.listen(PORT, () => {
   console.log('='.repeat(50))
-  console.log(`🚀 API Server running on http://localhost:${PORT}`)
-  console.log(`📊 Dashboard: http://localhost:${PORT}/api/dashboard`)
-  console.log(`🔍 Monitor: http://localhost:${PORT}/api/monitor`)
-  console.log(`🔧 Diagnostic: http://localhost:${PORT}/api/diagnostic`)
-  console.log(`☁️  Hetzner: http://localhost:${PORT}/api/hetzner`)
+  console.log(`API Server running on http://localhost:${PORT}`)
+  console.log(`Dashboard: http://localhost:${PORT}/api/dashboard`)
+  console.log(`Monitor: http://localhost:${PORT}/api/monitor`)
+  console.log(`Hetzner: http://localhost:${PORT}/api/hetzner`)
   console.log('='.repeat(50))
+
+  // Auto-collect server metrics every 5 minutes
+  if (isProduction) {
+    const INTERVAL = 5 * 60 * 1000
+    console.log('[SCHEDULER] Server metrics collection every 5min')
+
+    // Initial collection after 30s (let server stabilize)
+    setTimeout(() => {
+      collectAllServerMetrics().catch(err =>
+        console.error('[SCHEDULER] Initial collection failed:', err)
+      )
+    }, 30000)
+
+    // Recurring collection
+    setInterval(() => {
+      collectAllServerMetrics().catch(err =>
+        console.error('[SCHEDULER] Collection failed:', err)
+      )
+    }, INTERVAL)
+  }
 })