#475 Release notes: 0.60.0 re-cut

Accepted agent delivery; branch-keyed search descriptor included.

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Summary by cubic

The first v0.60.0 tag was never published, so this PR updates the release notes to cover the re-cut: worker task-record reads for heads, faster own-task status lookups, and bounded inspect file scans move from next-notes into v0.60.0.md. It also adds a benchmark slice descriptor for the re-cut.

Confidence Score: 5/5

This documentation-only PR appears safe to merge.

Summary

This PR updates the notes for version 0.60.0.

• The 0.60.0 notes now include worker-task and scan updates.
• The release-notes recut gets its own non-ranking benchmark slice.

No actionable issues were found.

_{Reviews (1) · Last reviewed commit: "landing: describe release-notes-060-recu..." · Reviewed by Greptile}