engrim 1.3.2 — multi-store merge, negation checks, and review safety

What's New in v1.3.2:

• Multi-Store Merge (engrim merge):

• Fold another SQLite store's records and logs into the current store (engrim merge OTHER.db).
• Idempotent with monotonic status resolution (superseded / done carry over and are never reactivated) and content-hash deduplication.
• Supports parallel CI jobs and multi-machine agent reconciliation (contributed by @mwpastore).
  • Explicit Negation Handling in Capture Checks:
• Prevents reversed decisions (e.g. "decided not to use X") from falsely matching existing positive decisions (contributed by @emsilva).
  • 0-Session Review State:
• Correctly reports review status as unknown when no session logs exist, avoiding false-positive "safe to clear" verdicts on fresh unlogged environments (contributed by @emsilva).
  • Full Test Coverage:
• 197 passing tests across all components.