added another API for db connection

server/src/server.ts

@@ -1,7 +1,7 @@
 import express, {Application, Request, Response} from 'express';
 import cors from 'cors';
 import  {ENV} from './config/env';
-import connectDB from './config/db';
+import {connectDB, readyState} from './config/db';
 
 const app: Application = express()
 
@@ -16,6 +16,16 @@ app.get('/health', (_req: Request, res: Response)=> {
     });
 });
 
+//for checking database connection
+
+app.get('/health/db', (req: Request, res: Response)=> {
+    res.json({
+        db_status: readyState(),
+        environment: ENV.NODE_ENV,
+        timestamp: new Date().toISOString()
+    })
+});
+
 
 //start Server