Commits the gzipped 277-deal prod fixture (frozen _price_from_inputs inputs),
the frozen backtest_baseline.json (overall MAPE 18.63% / bias -1.2%; per-segment
бизнес -21.5% / элит -38.6% — the systemic expensive-segment underestimation,
now measured), and a hermetic pytest gate that replays the fixture through the
full pricing spine (ZERO DB) and asserts metrics == baseline within float tolerance.
Relative regression gate, not an absolute SLA (live coverage ~55% is data-blocked
per #1966). To change estimator behaviour: regenerate the baseline
(--from-fixture --update-baseline, no DB) and justify the per-segment deltas in the PR.
The fixture (gzipped prod inputs) re-extracts rarely; the per-change artifact is the
3 KB baseline. Large-file hook excludes the fixture (re-extracted only on ground-truth refresh).
Refs #1966
openapi-codegen-check был RED на каждом PR: CI шаг гонял bare `npx prettier`
(резолвится в плавающий latest), а committed api-types.ts был отформатирован
старым prettier (≤3.6.2, union-типы multi-line). 3.9.0 переносит union-wrapping
на single-line → CI-регенерация всегда давала diff → gate падал.
Чиним детерминизмом одной версии на обоих путях:
- frontend/package.json: добавлен prettier@3.9.0 (exact) в devDependencies
+ обновлён package-lock.json.
- CI openapi-codegen-check: bare `npx prettier` → ./node_modules/.bin/prettier
(project-local pinned, не плавает).
- .pre-commit-config.yaml: prettier hook additional_dependencies=["prettier@3.9.0"]
— тот же движок, что в CI (alpha.8-обёртка байт-в-байт == prettier 3.9.0).
- api-types.ts перегенерирован prettier 3.9.0 (union-типы single-line).
Backend OpenAPI-схема не менялась — только формат. CI-регенерация теперь
байт-в-байт совпадает с committed-файлом и с выводом pre-commit hook.
- backend/alembic/* — alembic infra (env.py, script.py.mako). versions/ empty
for now; first migration goes in Stage 2a when models are finalized.
- backend/Dockerfile: bake alembic.ini + alembic/ into the image so
`docker compose exec backend alembic upgrade head` works in prod.
- backend/db/init/99_drop_unused_extensions.sql + bind-mount in both compose
files: drops postgis-image's TIGER/topology/fuzzystrmatch on fresh volumes.
- .pre-commit-config.yaml + pre-commit in dev deps: ruff/prettier on commit
to stop CI failures like UP035 from leaking out.
- ops/backup.sh, ops/restore.sh: pg_dump cron script with optional Selectel S3
upload. 7-day local retention. Restore guard: requires RESTORE_CONFIRM=yes.
- Makefile: new targets `make migration NAME=...`, `make pre-commit-install`.
- backend/.env.example: SENTRY_DSN comment with sentry.io reference.
