Steve Yegge 42e3bb315d Implement reference scoring algorithm (bd-13) ...

Add reference scoring to prioritize which colliding issues should be
renumbered during collision resolution. Issues with fewer references
are renumbered first to minimize total update work.

Changes to collision.go:
- Add ReferenceScore field to CollisionDetail
- scoreCollisions() calculates scores and sorts collisions ascending
- countReferences() counts text mentions + dependency references
- Uses word-boundary regex (\b) to match exact IDs (bd-10 not bd-100)

New tests in collision_test.go:
- TestCountReferences: validates reference counting logic
- TestScoreCollisions: verifies scoring and sorting behavior
- TestCountReferencesWordBoundary: ensures exact ID matching

Reference score = text mentions (desc/design/notes/criteria) + deps
Sort order: fewest references first (minimizes renumbering impact)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2025-10-12 16:27:05 -07:00

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