chore: remove redundant Dockerfiles and boilerplate main.py

docs: create professional and detailed README files for all subfolders

fix: filter out flat closed-market candles in both ingestion worker and graphql stock_history resolver to prevent horizontal flat-line 1D charts when market is closed

fix: stagger worker ticker fetches with a 1.5s delay and increase loop sleep to 30s to completely prevent yfinance IP rate-limiting

fix: add adaptive rate-limit cooldown to worker.py to stop hammering yfinance fast_info during IP rate limit bans

fix: wrap worker polling loop in try-except block to prevent crashes from database drops

fix: the typo

fix: worker dynamically fetches watchlist tickers from DB instead of hardcoded list

fix: wire KAFKA_BOOTSTRAP_SERVERS from settings and fix duplicate imports

chore: configure supervisord and Dockerfiles for single-container deployment

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

feat: implement stock ingestion worker with yfinance, aiokafka streaming, and database aggregation

chore: initial project structure with uv config and gitignore