golangci-lint v2 (CI-only; local is v1) flagged two unused-parameter issues:
- BuildTasteProfile's `now` was genuinely dead — decay/windowing are computed
DB-side via now(), so no Go-side timestamp is threaded. Removed it (a
phase-3 context model that needs a pinned reference time would re-add it);
updated the scheduler call site.
- the degenerate-params engagement test ignored t; reworked it to assert the
result stays in [-1,1], which also strengthens the test.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
bvandeusen
13b3fca949