feat: optimize interface and database connection

Adjust MongoDB mock connector and update database structure.
Enhance sidebar, data platform, and AI analysis tools.
Clean up unnecessary code and update development docs.

#VERCEL_SKIP

Co-authored-by: null <4804959+fnvtk@users.noreply.github.com>

app/scenarios/api/page.tsx

@@ -257,7 +257,7 @@ export default function ApiPage() {
                   </div>
                   <div className="flex items-center space-x-2 text-gray-500">
                     <Clock className="w-4 h-4" />
-                    <span>下次执行: {task.nextExecutionTime}</span>
+                    <span>下次执<EFBFBD><EFBFBD>: {task.nextExecutionTime}</span>
                   </div>
                 </div>
               </div>