Self-deploy git pull blocked on a dirty shared main checkout (manual/abandoned
WIP from a failed/cancelled task) — incident ORCH-111: "Your local changes to
src/config.py would be overwritten by merge" wedged the prod deploy and required
manual intervention (a group risk on self-hosting).
The deploy hook (--deploy) now converges the deploy-base to a clean, current
origin/main BEFORE the pull (git fetch + reset --hard origin/main + a SCOPED
`git clean -fd`, NEVER -x), strictly preserving the rollback/log artefacts
(.deploy-prev-image-* / deploy-hook.log via -e), gitignored .env/data/*.db/build
(no -x), and sibling/.git state (out of clean scope). Gated by CHECKOUT_HYGIENE
env injected by self_deploy.build_deploy_command only when the new pure never-raise
leaf src/checkout_hygiene.py says applies(repo) (kill-switch + self-hosting scope).
Convergence after failed/cancelled is this same deploy-time self-heal — cancel_task
is NOT extended and no background janitor is introduced. Observability: the hook
writes a `hygiene` sentinel, the Phase-C finalizer reads it and sends a best-effort
Telegram alert.
Additive, under kill-switch (ORCH_CHECKOUT_HYGIENE_ENABLED, default true; off ->
bare `git pull origin main` 1:1 before ORCH-112), never-raise, self-hosting scope.
STAGE_TRANSITIONS / QG_CHECKS / check_* / machine-verdict keys / DB schema / the
hook exit-code contract (0/1/2, ORCH-036) are byte-for-byte untouched.
Coverage: tests/test_deploy_checkout_hygiene.py (TC-01..TC-10; real-hook shell
simulation in a temp git repo, no network/prod/ssh, + unit). TC-01 is the
mandatory ORCH-111 regression (RED before the fix, GREEN after). Docs golden
source updated in the same PR (CLAUDE.md, CHANGELOG.md, .env.example; INFRA.md /
architecture/README.md / adr-0044 written at the architecture stage).
Refs: ORCH-112
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
