feat(market): session-aware cache + force_refresh + asof on market_snapshot

feat(sec_edgar): 8-K parser parity + EX-99.x exhibit fetcher

fix(tests): add missing capability stubs and fix mock targets

fix(sec-edgar): drop spacer column kept alive by full-width spanning rows

refactor: Phase 6 data layer + portfolio + UI fixes + breadth label

fix(sec-edgar): rule-based <table> rebuild + 10-K heading-split healing + 113 real-world fixtures

feat(data): add SEC Edgar filings parser and caching

fix: harden stock profiles and preserve percent chart layout across view changes

fix: redact private source endpoint errors and package watchlist router

Initial open-source release