Systematic round - attack the failure classes, not one bug at a time:
- Flakiness (Coverage/Extended Matrix flipped green<->red): the generated
format-matrix conversion tests hardcode a 30s/60s per-test timeout that the
jobs' VITEST_TEST_TIMEOUT can't override. Heavy conversions under coverage
instrumentation / full matrix intermittently exceed it. Raise to 120s.
- Schemathesis: html-to-image returns 503 when its headless browser isn't
present (always, in the fuzz env) - same expected-unavailable class as the
AI 501s. Exclude it from the fuzz (it can't be exercised without a browser).
- Baseline regen: bump timeout 60->120 min so it can finish now that the
route sweep (#347) lets the visual specs pass instead of failing+retrying.