ci: extract docs-only classifier tests and retry stale-diagnostic e2e flakes

[ScriptedAlchemy]

Summary

• Extract the ci: trim PR Verify matrix to Node 24 and skip heavy jobs on docs-only PRs #232 docs-only allowlist and fail-open listing checks into scripts/classify-docs-only.mjs with fixture tests (renames, nested SKILL.md, truncated listings). Prevents a classifier bug from skipping Verify.
• Apply { retry: 2 } to the examples-real.e2e stale-diagnostic/repair journeys — the same interim used for the flake: track remaining dev-watcher and MCP App gate failures #122/Flake: overview.e2e owned-reload generation budget exceeded under hosted-runner load #200 hosted-load flake family.
• Main's 22.19/24/26 matrix and job names are unchanged. Caching, sharding, setup-dedup, artifact reuse, and main concurrency-cancel are intentionally not in this PR (issue CI speed: PR runner-minutes cut ~47% (trimmed Verify matrix + docs-only skip) — before/after and remaining ideas #241: data said no / not workflow logic).

Closes #241.

Test plan

• actionlint .github/workflows/ci.yml
• pnpm exec rstest --config rstest.unit.config.ts packages/agent-bundle/tests/classify-docs-only.test.ts (4/4)
• rslint on the touched TS/JS files
• Do not wait on hosted CI — local validation is the merge gate; hosted is the post-merge net

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[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-02T02:21:06.145563Z	0156122	PR opened

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[ScriptedAlchemy]

Heads-up from the #105 phase-2 lane: pnpm typecheck fails on current main with

packages/agent-bundle/tests/classify-docs-only.test.ts(14,8): error TS7016: Could not find a declaration file for module '../../../scripts/classify-docs-only.mjs'.

Reproduced on a pristine origin/main worktree at 9a046d963 (this PR's merge). Likely the new test needs a .d.mts beside scripts/classify-docs-only.mjs (or a typed import shim). Flagging here since this lane owns the file; not fixed in #263 to avoid cross-lane scope.

[ScriptedAlchemy]

Verified on fresh origin/main worktree at c97a50f41 (post-#263): pnpm build && pnpm typecheck is green — no TS7016 on scripts/classify-docs-only.mjs.

Fixed forward by #261 (commit 8739fc307, merged as 011bdf134), which added scripts/classify-docs-only.d.mts declaring the module exports.