docs(sec_edgar): document 8-K parsing + EX-99.x exhibit append

docs: comprehensive update — GEX, watchlist API, signal schema, route contracts

feat(signals): monitor reliability sweep + multi-component /health page

feat(signals): unified signals/ pkg + weekly report + hardened webhook

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

docs: fix mkdocs strict-build warnings (broken links + anchor slugs)

docs: analytics/interface/api-reference touch-ups + mkdocs nav

feat(agent,interface): expose SEC filings through agent capabilities and stock page

fix(agent): gate widget on hosted model readiness

docs: add structured docs site and agent guides

docs: clarify agent usage and runtime maintenance guides

Initial open-source release