fix: change city name

Clean up README.md formatting

Remove project structure and Docker deployment sections

Clean up README by removing unnecessary sections

Remove API endpoints and frontend features from README

Remove API key warning from README

docs: add architecture diagram

Replace ASCII diagram with architecture image

Revise README for clarity and additional features

fix: delete comments

fix: show final answer after thinking steps

fix: use environment variable for API URL

fix: use /chat endpoint instead of /chat-stream

fix: use tsx runtime instead of TypeScript compilation

fix: commit compiled dist for deployment