feat: VPS dashboard + LangSmith online evaluators and prompt versioning

feat: widen market cap to $5M-$500M, dynamic amnesia, more noise words

feat: Sprint 9 — Execution & Quality Control

feat: SEC EDGAR ground truth + Kelly Criterion position sizing (Epic 3 & 4)

feat: LangGraph best-practices refactor (Sprint 8 Epics 2-3-4)