Add a new Node.js script (`debug_production.js`) to test various API endpoints in the production environment, including health checks, credential validation, login attempts, and task-related operations. Also includes an HTML file (`test_task_update.html`) for manually testing the task update endpoint.
Replit-Commit-Author: Agent
Replit-Commit-Session-Id: cc2d271b-82f0-4d6a-9302-a0b067ffb429
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/cc2d271b-82f0-4d6a-9302-a0b067ffb429/grlWN1D
