feat: integrate Resend HTTP API support for firewall-safe email delivery

feat: integrate Prometheus metrics suite and polish landing page navigation

feat: implement glassmorphic contact form modal and backend SMTP mail support

fix: wire KAFKA_BOOTSTRAP_SERVERS from settings and fix duplicate imports

feat: implement Google OAuth, Razorpay webhook, and bug fixes for watchlist and yfinance polling

feat: updated the database_url_async

feat: configure Alembic env.py to dynamically load settings database URL and metadata

feat: implement configuration and database session setup for NeonDB and Redis

chore: initial project structure with uv config and gitignore