Refine market scout, pitch rendering, and signal sweep skills

[eggmasonvalue]

Summary

• recast pitch-like-lou as an evidence-bounded rendering layer instead of a second analysis framework
• make market-scout path/runtime guidance and Yahoo/transcript failure contracts factual without bounding the wider API
• fix signal-sweep pagination, provenance, transaction dates, event-date move context, 13D labeling, and coverage reporting
• repair the daily insider workflow and remove stale development worklogs / line-count residue

Validation

• uv run --frozen ruff check .
• uv run --frozen ruff format --check .
• npx markdownlint-cli2 "**/*.md"
• uv lock --check in skills/market-scout and skills/signal-sweep
• Python compileall
• focused live Yahoo, transcript, EFTS, Form 4, market-screen, and investor-event smoke commands