14 tests covering:
- T3 hostname normalization (lowercase, www. strip, port/path/query strip,
subdomain-exact preserved)
- T4 scope shadowing (per-project active shadows global for same host)
- T5 persistence (version monotonicity, tolerant parser drops partial line)
- T6 state machine (quarantined → active after N=3 uses, classifier-flag
blocks promotion, save-time score >= 0.85 rejected)
- Rollback by version log (restore prior body, advance version counter)
- Tombstone deletion (read returns null after delete)
All 14 pass in 27ms via bun test.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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