Remove accidental duplicate license section

Add MIT license

Ignore generated evaluation caches

Ignore local files and remove Python cache

Remove generated files and clean repository

Add product demo GIF to README

Fix and polish Streamlit interface

Fix CI recall gate and add workflow badge

Add CI retrieval evaluation gate and lock dependencies

Rewrite README with complete project documentation

Ship chat UI, update project links, and add MIT license

Complete ablation table: query rewriting 0.91/0.69, dense confirmed champion

Fix partial-init bug in retrieval singleton

Self-building index for Spaces deploy

Add HF Space config

Untrack pycache

Day 8: Streamlit UI + dotenv config

Day 7: refusal-hardened prompt (7/7), strict citations; faithful 0.89, correct 0.91

Weighted RRF (2:1): no recall recovery; hybrid still 0.86 vs dense 0.91

Day 5 ablations: hybrid recall@20=0.97, bge-reranker-base hurts MRR (0.71->0.63)

Baseline v0: recall@5 0.91, MRR 0.71, correct 0.89

Day 4: 42-question eval harness; fix max file size (routing.py was unindexed)

Add gitignore

Remove venv and generated data from git; add .gitignore

Day 3: embedding index + baseline ask pipeline

Day 2: AST-aware chunkers for code, docs, issues

Day 1: ingestion pipeline (code, docs, issues)