Fixed Bug Server

## Summary
This branch contains several bug fixes and performance improvements, primarily focusing on:
- Database connection management
- MQTT client stability
- Logging optimization
- API enhancements

## Detailed Changes

### Fixed Issues
1. **Database Connection Management**
   - Removed  from user-validate API route to prevent connection pool exhaustion
   - Added proper connection handling in global Prisma setup
   - Reduced logging verbosity in production environments

2. **MQTT Client Improvements**
   - Enhanced MQTT client initialization with proper error handling
   - Added reconnection logic with configurable intervals
   - Implemented cleanup functions to prevent memory leaks
   - Added separate initialization logic for server and client-side code

3. **Logging Optimization**
   - Removed excessive logging in middleware that was causing high CPU usage
   - Configured appropriate log levels for development and production

4. **Component Stability**
   - Added safety checks in text editor component to prevent MQTT operations on the server side
   - Improved MQTT publishing logic with client availability checks

### New Files
-  - Utility functions for safe database operations

### Modified Files
1.
   - Removed problematic  call

2.
   - Configured different logging levels for dev/prod
   - Removed process listeners that were causing disconnections
   - Exported prisma instance separately

3.
   - Removed excessive logging statements

4.
   - Enhanced initialization with error handling
   - Added reconnection and timeout configurations

5.
   - Added proper cleanup functions
   - Improved connection handling

6.
   - Added MQTT client availability checks
   - Prevented server-side MQTT operations

### Performance Improvements
- Reduced database connection overhead
- Optimized MQTT connection handling
- Eliminated unnecessary logging in production
- Better memory management with proper cleanup functions

### No Issue

src/middleware.tsx

@@ -66,9 +66,10 @@ export const middleware = async (req: NextRequest) => {
   const { pathname } = req.nextUrl;
 
   const apiBaseUrl = new URL(req.url).origin || process.env.NEXT_PUBLIC_API_URL;
-  const dbUrl = process.env.DATABASE_URL;
-  console.log("DATABASE_URL >>", dbUrl);
-  console.log("URL Access >>", req.url);
+  // Removed excessive logging that was causing high CPU usage
+  // const dbUrl = process.env.DATABASE_URL;
+  // console.log("DATABASE_URL >>", dbUrl);
+  // console.log("URL Access >>", req.url);
 
   // Handle CORS preflight
   const corsResponse = handleCors(req);