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/lib/prisma.ts

@@ -9,30 +9,21 @@ declare global {
 let prisma: PrismaClient;
 
 if (process.env.NODE_ENV === "production") {
-  prisma = new PrismaClient();
+  prisma = new PrismaClient({
+    // Reduce logging in production to improve performance
+    log: ['error', 'warn'],
+  });
 } else {
   if (!global.prisma) {
-    global.prisma = new PrismaClient();
+    global.prisma = new PrismaClient({
+      log: ['error', 'warn', 'info', 'query'], // More verbose logging in development
+    });
   }
   prisma = global.prisma;
 }
 
 // Tambahkan listener hanya jika belum ditambahkan sebelumnya
 if (!global.prismaListenersAdded) {
-  // Handle uncaught errors
-  process.on("uncaughtException", async (error) => {
-    console.error("Uncaught Exception:", error);
-    await prisma.$disconnect();
-    process.exit(1);
-  });
-
-  // Handle unhandled promise rejections
-  process.on("unhandledRejection", async (error) => {
-    console.error("Unhandled Rejection:", error);
-    await prisma.$disconnect();
-    process.exit(1);
-  });
-
   // Handle graceful shutdown
   process.on("SIGINT", async () => {
     console.log("Received SIGINT signal. Closing database connections...");
@@ -51,3 +42,4 @@ if (!global.prismaListenersAdded) {
 }
 
 export default prisma;
+export { prisma };

src/lib/prismaUtils.ts

@@ -0,0 +1,24 @@
+import { prisma } from './prisma';
+
+/**
+ * Utility function to safely execute Prisma operations
+ * This prevents improper disconnection of the Prisma client
+ * which was causing high CPU usage and connection pool issues
+ */
+export async function executeDbOperation<T>(
+  operation: () => Promise<T>,
+  errorMessage: string = "Database operation failed"
+): Promise<{ success: boolean; data?: T; error?: string }> {
+  try {
+    const data = await operation();
+    return { success: true, data };
+  } catch (error) {
+    console.error(errorMessage, error);
+    return { success: false, error: (error as Error).message };
+  }
+  // Note: We intentionally do NOT call prisma.$disconnect() here
+  // Prisma manages connection pooling automatically and disconnecting
+  // on each request causes performance issues
+}
+
+export { prisma };