Self-review follow-ups, kept as a separate commit so the review trail is honest.
- Spec drift: POST /widgets/preview was documented scope 'read' but the method-based
tokenScopeGate enforces 'write' for any POST, so a read-token integrator following the
published docs would hit a surprise 403. The code is right; fix the SPEC to match it.
- Guard it forever: test/openapi-contract.test.js cross-checks every spec operation's
x-required-scope against the enforcement rule, and that every documented path is a
public (token-reachable) router - both derived from the same config/api-surface.js.
Adds js-yaml (devDep) to parse the spec. Spec/enforcement drift now fails CI.
- Vendored Redoc: add frontend/vendor/README.md (library, version 2.3.9, source, update
steps) and drop the dangling //# sourceMappingURL line so /docs doesn't 404 in devtools.
Remaining (non-security) test-coverage gaps tracked in #92.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>