Update server configuration and types for improved stability

Revert and adjust TypeScript configurations, refine server route types, and update database connection handling for better performance and compatibility.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 2743061c-c65e-41ed-bf21-8da6d73315e6
Replit-Commit-Checkpoint-Type: full_checkpoint

server/db.ts

@@ -32,7 +32,7 @@ if (isProduction && dbUrl && (dbUrl.includes('logiflow-db') || dbUrl.includes('l
   
   // Test connection
   try {
-    await pool.connect().then(client => {
+    await pool.connect().then((client: any) => {
       console.log('✅ PostgreSQL connection test successful');
       client.release();
     });