Mar 7

1. 23:01

   feat(ai): refactor coach feedback to 3-pillar format with mandatory browsing (Sprint 39)

   CognxSafeTrack
   74d7942
2. 22:20

   chore: execute Sprint 38 technical debt resolution (Type Safety, Zod validation, Vitest, Mock LLM extracted)

   CognxSafeTrack
   d9879cf