feat: implement comprehensive health check endpoints for API, Auth, and Realtime services to monitor database, Redis, MinIO, and InfluxDB connectivity.

api/src/index.js

@@ -16,10 +16,19 @@ app.get('/', (req, res) => {
     res.redirect('/health');
 });
 
-app.get('/health', (req, res) => {
+app.get('/health', async (req, res) => {
+    const postgres = await require('./storage/postgres').checkPostgres();
+    const influx = await require('./storage/influx').checkInflux();
+    const minio = await require('./storage/minio').checkMinio();
+
+    const allOk = Object.values(postgres).every(s => s === 'connected') && influx && minio;
+
     res.json({ 
-        status: "ok",
+        status: allOk ? "ok" : "degraded",
         service: "api",
+        databases: postgres,
+        influx: influx ? 'connected' : 'disconnected',
+        minio: minio ? 'connected' : 'disconnected',
         version: version,
         build_number: vBuild,
         version_state: vState