fix(db): increase connection pool size and timeout to handle concurrent verifications

server/db.ts

@@ -23,9 +23,9 @@ if (isProduction && dbUrl && (dbUrl.includes('logiflow-db') || dbUrl.includes('l
   pool = new Pool({
     connectionString: dbUrl,
     ssl: false,
-    max: 10,
+    max: 25, // Increased from 10 to handle concurrent verifications
     idleTimeoutMillis: 30000,
-    connectionTimeoutMillis: 5000,
+    connectionTimeoutMillis: 15000, // Increased from 5000 to 15000
   });
 
   db = drizzle({ client: pool, schema });