Rebase resolution: dev's #392 introduced tests_backend/requirements.txt
(python 3.14, phcc 0.13.357, homeassistant 2026.8.3) — exactly the
single-source-of-pins AC of this issue, so the duplicate
requirements_test.txt is dropped and both workflows keep installing from
the #392 file; ruff is added there for the lint step. The backend
reuse key no longer names the dead file (tests_backend/ as a root
already covers the new one); ARCHITECTURE.md points at the real path.
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Issue: #42
M1: the AC5 scanner parses the (field, code, message) literal tuple in
validation.py structurally instead of naming the two known codes — a
third tuple entry with an unregistered code now fails the registry test
(verified with an injected invalid_ghost_entity_mutant_probe), and a
tuple whose string count is not a multiple of three refuses instead of
guessing.
M2: the backend reuse key now includes its direct job inputs introduced
by this issue — scripts/backend-coverage-baseline.txt (the threshold the
comparison step reads), requirements_test.txt (the pip source) and
pyproject.toml (ruff/mypy config) — verified: the key changes when the
baseline changes and is restored byte-for-byte with the file.
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Issue: #42
Упавший тяжёлый гейт не пишет маркер переиспользования — и правильно, иначе
починка осталась бы незамеченной. Но следствие в том, что следующий коммит
гонит ту же job на тех же входах, падает так же, и письмо «Run failed»
называет его. 29 августа так был назван 0f7b6f5, документ ревью, который не
может изменить ни одного пикселя: сцену без эталона добавил dbbe94ae.
Теперь падение оставляет второй маркер — с тем же ключом, что у маркера
успеха. Совпадение ключа доказывает равенство входов, поэтому повторное
падение может честно сказать «красная с такого-то SHA, этот коммит её не
ронял», а первое — «причина здесь». Само падение по-прежнему не кэшируется:
job прогоняется всегда, меняется только формулировка в notice и summary.
Первопричина записывается только на первом падении: иначе SHA съехал бы на
свидетеля и сообщение перевернулось бы смыслом.
Issue: #386
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Every push to dev paid for the full browser trio and the backend suite,
including commits that touch only documentation, workflows or process
scripts — the bundle and the harness were byte-identical, so the runs
proved nothing new. On 2026-08-19 alone that was roughly six pushes at
about seven minutes each.
The reuse key per heavy job is sourceFingerprint (src, demo fixtures,
golden scenarios, build manifests) plus that job's own harness: smoke
takes demo/smoke_*.mjs, golden takes demo/golden/** including baselines,
performance_smoke takes demo/performance/**, backend takes tests_backend
and the Python sources. A cache marker is written only by a successful run
of the same key, so a hit proves a job with identical inputs already
passed. scripts/** is deliberately outside every key: infrastructure work
edits it constantly and reuse would never fire.
This is not the path filter from the `changes` job, which stays disabled
on dev on purpose: there the scope is guessed from paths and "green" means
different things, here input equivalence is proven by a hash. And a
release candidate always bumps the version, which is part of the
fingerprint, so its keys are new by construction and the full gate set
still runs before every beta and release.
A waived job is announced with a notice and a run summary line rather than
skipped in silence, and the marker save tolerates a concurrent identical
run instead of reddening the job.
Issue: #208
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