fix: recover exact publish artifact

[tensornull]

What changed

• Keep Release Please result evidence under runner.temp so release checks do not format runtime artifacts.
• Add a one-cycle, exact-source recovery trigger for the already-created immutable v0.1.1 Release after the observed downstream gate failure.
• Validate the recovery actor, source run, release commit, direct first parent, exact repair file set, artifact identity, and rerun state.

Root cause

Publish run 30469240186 verified the immutable Release and result artifact, then failed before packing because release-please-result/result.json was inside the Prettier workspace. No live smoke, OIDC, npm, or version/tag mutation occurred.

Verification

• npm test (386 tests)
• npm run format:check
• npm run lint
• npm run typecheck
• npm run actionlint (1.7.12)
• npm run check:self-contained
• npm run check:public-preview
• npm run test:secrets
• git diff --check

The recovery constants are temporary and are documented for removal in the post-release evidence PR.