feat(extensions): show delegated review metadata

[benvinegar]

Summary

• add bounded, provider-neutral review descriptors to extension CLI patch delegation
• preserve delegated metadata across same-source refreshes and clear it for unrelated reloads
• expose review metadata to extension panes and session/broker projections
• add a bundled two-row hunk:review-info pane above the review stream for change requests
• update the GitHub PR example to fetch and display PR metadata through the public API

Architecture

The descriptor stays in the session/bootstrap envelope rather than ReviewDocumentV1 or changeset transforms. Validation is shared by extension delegation and browser-safe protocol parsing. The bundled pane registers through the same public pane API as third-party extensions.

Validation

• bun run typecheck
• full unit suite: 2,099 passed
• PTY integration: 142 passed
• session tests: 13 passed
• review conformance: 111 passed
• bun run deps:check
• source-boundary checks
• formatting and package-consumer checks

Follow-up

After API v17 ships, modem-dev/hunk-gh can emit these descriptors for installed GitHub PR reviews.

This PR description was generated by Pi using GPT-5.6 Sol

[greptile-apps]

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1 Skipped Deployment

Project	Deployment	Actions	Updated
hunk-web	Ignored	Preview	Sep 5, 2026 1:04am UTC