Persist self-healing process traces

[giaphutran12]

Summary

Stacked on #52 (codex/collection-official-website-sources).

This makes the self-healing layer persist a real process trace artifact from both runtime paths:

• Mastra/injected runtime records search, fetch, insert-row, and recovery steps.
• Collection runtime maps vendored pipeline reports into the same trace shape.
• Self-healing run records persist a process-trace artifact, including search queries, fetched URLs, source artifacts, selected row source, notes, and ordered steps.
• playwright-candidate-script is reserved as an artifact kind but intentionally not emitted yet.

Reviewer fixes included:

• Search-result URLs are no longer labeled as successful fetch artifacts. Captured sources now track search, fetch, or synthetic provenance.
• Large process-trace artifacts are truncated before JSON serialization, so the stored artifact remains valid parseable JSON and stays within the artifact size cap.

What this does not claim

• No Playwright script compiler yet.
• No cron rerun/promotion of generated Playwright scripts yet.
• No automatic benchmark migration into Meteor's next app branch yet.

Verification

• node --import ./backend/node_modules/tsx/dist/esm/index.mjs --test backend/test/populate-self-healing.test.ts backend/test/collection-agent-runner.test.ts
• npm --prefix backend run build
• npm --prefix backend test
• git diff --check
• node --check benchmarks/dataset-agent/run-benchmark.mjs
• make verify-self-healing

[coderabbitai]

Important

Review skipped

Draft detected.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: e2cef09c-5cc7-44d5-aa1a-5d3182a7a4ff

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/self-healing-process-trace

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}