v0.11.0 — test what you touch; the whole suite at the boundaries

Test what you touch while building; run the whole suite at the boundaries.

• New references/test-cadence.md: three tiers. Each criterion or ticket task runs only the tests of the code in hand (plus pnpm check, which is static). Each ticket phase runs its own T rows and the R rows of the files it edited. The whole suite runs once at a boundary: the last criterion of a phases.md phase, a ticket's close-out, and before any push.
• /pspt:build, /pspt:build-long, /pspt:ticket and /pspt:ticket-build follow it: no more full runs per criterion or per phase.
• Resource discipline so the suite fits an ordinary laptop: one database container per test run (Vitest globalSetup and a migrated template database, one copy per file) instead of one per file, unit and integration as separate projects, capped maxWorkers, and no browser or dev server left running between steps.

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Full history: CHANGELOG.md