feat(log): Add detailed logs for user interactions and server status

Use gthread workers (8 threads) to keep /health responsive under load

Preload model in background; faster health checks

fix(docs): Update Render URLs in deployment documentation and embed code

fix(docs): Update deployment instructions to reflect migration from Railway to Render.com

fix(log): Update chatbot log entries and improve server information

fix(widget): Adjust chat message container width and improve styling

fix(widget): Enhance chat widget scrolling behavior and auto-scroll functionality

fix(widget): Correctly position typing indicator and enhance scrolling behavior

fix(widget): Improve chat widget scrolling behavior and responsiveness

Add Vercel integration for CF TechLab Chatbot

feat(database): Initialize SQLite database for logging conversations and feedback

Update chatbot logs, enhance intent patterns and responses, and refresh model files

Enhance CF TechLab AI Assistant with improved features and UI

Add: Initial CONTRIBUTING.md and LICENSE files