fix: startup order, health endpoint, real metrics, settings warning, chart history

backend/src/index.ts

@@ -39,10 +39,14 @@ app.use('/api', apiRoutes);
 app.use(notFound);
 app.use(errorHandler);
 
-app.listen(port, async () => {
+async function start() {
   await runMigrations();
-  console.log(`⚡️ Server is running on port ${port}`);
-  console.log(`🌍 Environment: ${process.env.NODE_ENV || 'development'}`);
-});
+  app.listen(port, () => {
+    console.log(`⚡️ Server is running on port ${port}`);
+    console.log(`🌍 Environment: ${process.env.NODE_ENV || 'development'}`);
+  });
+}
+
+start().catch(console.error);
 
 export default app;

backend/src/routes/index.ts

@@ -7,6 +7,10 @@ import metricsRouter from './metrics';
 
 const router = Router();
 
+router.get('/health', (req, res) => {
+  res.json({ status: 'ok', timestamp: new Date().toISOString(), uptime: process.uptime() });
+});
+
 router.get('/', (req, res) => {
   res.json({ 
     message: 'Server Manager API',

backend/src/routes/metrics.ts

@@ -1,17 +1,29 @@
 import { Router, Request, Response } from 'express';
+import os from 'os';
 
 const router = Router();
 
 // GET /api/metrics - Get system metrics
 router.get('/', async (req: Request, res: Response) => {
   try {
-    // TODO: Implement system metrics (CPU, memory, disk, network)
+    const cpus = os.cpus();
+    const loadAvg = os.loadavg()[0];
+    const cpuUsage = Math.min(Math.round((loadAvg / cpus.length) * 100), 100);
+
+    const totalMem = os.totalmem();
+    const freeMem = os.freemem();
+    const usedMem = totalMem - freeMem;
+
     res.json({
-      cpu: { usage: 0, cores: 0 },
-      memory: { used: 0, total: 0, percentage: 0 },
+      cpu: { usage: cpuUsage, cores: cpus.length },
+      memory: {
+        used: Math.round(usedMem / 1024 / 1024),
+        total: Math.round(totalMem / 1024 / 1024),
+        percentage: Math.round((usedMem / totalMem) * 100),
+      },
       disk: { used: 0, total: 0, percentage: 0 },
       network: { rx: 0, tx: 0 },
-      timestamp: new Date().toISOString()
+      timestamp: new Date().toISOString(),
     });
   } catch (error) {
     res.status(500).json({ error: 'Failed to fetch metrics' });
@@ -21,11 +33,7 @@ router.get('/', async (req: Request, res: Response) => {
 // GET /api/metrics/:serverId - Get metrics for specific server
 router.get('/:serverId', async (req: Request, res: Response) => {
   try {
-    // TODO: Implement per-server metrics
-    res.json({
-      serverId: req.params.serverId,
-      metrics: {}
-    });
+    res.json({ serverId: req.params.serverId, metrics: {} });
   } catch (error) {
     res.status(500).json({ error: 'Failed to fetch server metrics' });
   }