fix: resolve duplicate path and fs declarations and implement smart .env multi-path resolution

whatsapp_bridge/server.js

@@ -16,13 +16,33 @@ const app = express();
 const server = http.createServer(app);
 const wss = new WebSocketServer({ server });
 
-// Load environment variables from .env file
-require('dotenv').config();
+// Load environment variables from .env file (Smart Multi-Path Lookup)
+const path = require('path');
+const fs = require('fs');
+const dotenv = require('dotenv');
+
+const envPaths = [
+  path.join(__dirname, '.env'),                          // whatsapp_bridge/.env
+  path.join(__dirname, '..', '.env'),                     // mywhatsapp.intaleqapp.com/.env
+  '/home/intaleqapp-mywhatsapp/.env'                      // Server user root-level .env (as in user screenshot)
+];
+
+let envLoaded = false;
+for (const envPath of envPaths) {
+  if (fs.existsSync(envPath)) {
+    dotenv.config({ path: envPath });
+    console.log(`[ENV] Successfully loaded environment variables from: ${envPath}`);
+    envLoaded = true;
+    break;
+  }
+}
+if (!envLoaded) {
+  dotenv.config(); // Fallback to default CWD
+  console.log('[ENV] No specific .env found in known paths, loaded default configuration');
+}
 
 // ─── Firebase Admin SDK Configuration (Highly Secure Background Pushes) ─────
 const admin = require('firebase-admin');
-const path = require('path');
-const fs = require('fs');
 
 let firebaseApp = null;