Fix NAV chart: cumulative return index instead of raw returns

Remove delisted JAVLX from fund universe

Week 6: N-PORT ETF CIK overrides, 5-fund pipeline validated

Week 5: agent loop with full pipeline and Claude narrative

Week 4: chart generator with NAV, factor loadings, and rolling exposure charts

Week 4: fund metadata fetcher with hardcoded universe and FMP fallback

Week 3: drift detection engine with rolling OLS and drift flagging

Week 2: N-PORT parser with CIK lookup and holdings extraction

Week 2: factor regression engine with 4 confidence dimensions

Extend date range to 2025-12 across all tools

Week 1 Track 2: ETF price fetcher with monthly returns and data quality check

Week 1 Track 1: Ken French FF6 factor fetcher with caching

Initial project setup: structure, dependencies