Modernize sorting code to use Go 1.21+ slices package:
- Replace sort.Slice with slices.SortFunc across 16 files
- Use cmp.Compare for orderable types (strings, ints)
- Use time.Time.Compare for time comparisons
- Use cmp.Or for multi-field sorting
- Use slices.SortStableFunc where stability matters
Benefits: cleaner 3-way comparison, slightly better performance,
modern idiomatic Go.
Part of GH#692 refactoring epic.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implements wisp management commands for ephemeral molecules:
- bd wisp list: List wisps with stale detection
- bd wisp gc: Garbage collect orphaned wisps
- bd mol burn: Delete wisp without creating digest
Wisps are ephemeral molecules stored in .beads-wisp/ for patrol cycles
and operational loops that shouldn't accumulate in permanent storage.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>