ci: centralize path-gating behind single orchestrator + all-checks-pass
gate
Replace the scattered per-workflow detect-changes pattern with a single
ci.yml orchestrator that runs the classifier once, then conditionally
calls sub-workflows via workflow_call based on lane outputs. A final
all-checks-pass job (if: always()) aggregates all results so branch
protection only needs to require one check.
Changes:
- New .github/workflows/ci.yml orchestrator (detect + conditional calls
+ all-checks-pass gate)
- Extend classify_changes.py with scan/deps/mcp_catalog lanes, absorbing
supply-chain-audit's internal changes job
- Update detect-changes/action.yml to expose the new lane outputs
- Convert all 10 PR-gated sub-workflows to workflow_call-only triggers,
removing their push/pull_request triggers and per-step detect-changes
guards (gating now happens at the orchestrator level)
- lint.yml + supply-chain-audit.yml receive event_name as a
workflow_call
input to replace github.event_name (which is "workflow_call" inside
called workflows)
- supply-chain-audit.yml: remove internal changes job + *-gate jobs
(orchestrator handles gating, booleans arrive as inputs)
- contributor-check.yml: remove internal filter step
- Update test_classify_changes.py for 6-lane output + new supply-chain
test cases
Runs `uv lock --check` on every PR and on push to main that touches
pyproject.toml, uv.lock, or this workflow itself. Exits non-zero if
the lockfile is out of sync with pyproject.toml, blocking the PR
before it can break the Docker build on main.
Rationale: the new Dockerfile layout uses `uv sync --frozen --extra all`,
which rejects stale lockfiles. Without this guard, a PR that changes
pyproject.toml dependencies but forgets to regenerate uv.lock would
merge fine and then break docker-publish on main (visible only after
~15 min of build time, producing no image).
On failure, the step adds a GitHub annotation and a workflow summary
block with the exact commands to run locally (`uv lock`,
`git add uv.lock`, `git commit`).
Verified locally that:
- Clean tree: `uv lock --check` succeeds (resolves in ~2ms, no work).
- Stale lockfile (added cowsay to pyproject.toml, not in lock): exits 1
with message 'The lockfile at `uv.lock` needs to be updated'.
