Adds the requirement rows other work in flight needs so `traces:validate`
stays green: DR-204 (frontend logging facade), DR-205 (ESLint + Prettier
gate), DR-206 (pinned Rust toolchain), DR-207 (pre-commit hook), DR-208
(documentation link integrity), DR-209 (server-side library folder
exclusion) and UR-076, plus §4 test rows UT-201, UT-202 and UT-203.
Deletes docs/codebase-audit.md. It was a 2026-08-16 snapshot of v0.6.0 at
commit be907b49 with no status markers, three releases stale, describing
code that had since changed — a document that half-describes the codebase
is worse than none. Everything in it still genuinely open already lived in
§5's table; the §5 preamble now records what was dropped as closed and
why, so nothing is silently re-raised or silently lost.
Also rewrites §5 row 11 with today's figures and the actual cost: the six
oversized modules are the same ones CLAUDE.md's Gotchas section keeps
having to warn about, which is the price being paid. Recorded, not
scheduled.
Fixes a dead link to the removed src/lib/services/playbackControl.ts,
which now points at src/lib/utils/playbackUnits.ts.
dtourolle
662cb3cd85