feat: LangGraph best-practices refactor (Sprint 8 Epics 2-3-4)

feat: major architecture refactor with yFinance screener, scoring, and insider feeds

feat: implement Graham-aligned Sector Logic gatekeeper and live Portfolio paper-tracking memory

fix: routing flow for AUTO and Social Scout to correctly process tickers

fix: routing bug splitting sentences into tickers

update agent with new routing, chart generation, and zombie filter

Update chatbot

Update chatbot

Fix: New Sprint 7

Feat: Add AUTO mode for trending stocks

Feat: Social Scout Mode (Brave + Regex)

Feat: Add Brave, Charts and Email Notifications

Initial Deploy (Clean)