Refactor: Replace regex sector exclusion with LLM-based Intent Parser

Fix: Robust Regex for Sentiment Guard

Fix: Explicit Sector Truth Tables to prevent AI Hallucination

Fix: Crash recovery, remove live fetch, add Passive AI logic

Feat: Market Cap Filtering (Smallest/Largest 50)

Feat: Max Weight Constraint & NLP Logic

Initial Release: QuantScale AI Institutional Engine