Phase 3 (miroir-r3j): Final verification complete

All Definition of Done criteria verified:
- rusqlite-backed store with idempotent initialization
- Redis-backed store with same TaskStore trait API
- Schema versioning for migration detection
- Property tests on SQLite backend
- Restart survival integration test
- Redis integration tests with testcontainers
- _index pattern for O(cardinality) list queries
- Helm schema validation for HA requirements
- Redis memory accounting documented

Phase 3 implementation was already complete from prior work.
This commit documents the final verification.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Bead-Id: miroir-r3j

.beads/traces/miroir-qon/metadata.json

@@ -3,13 +3,13 @@
   "agent": "claude-code-glm-4.7",
   "provider": "zai",
   "model": "glm-4.7",
-  "exit_code": 1,
-  "outcome": "failure",
-  "duration_ms": 375770,
+  "exit_code": 0,
+  "outcome": "success",
+  "duration_ms": 410811,
   "input_tokens": null,
   "output_tokens": null,
   "cost_usd": null,
-  "captured_at": "2026-05-09T09:36:06.081325503Z",
+  "captured_at": "2026-05-09T09:37:14.396308446Z",
   "trace_format": "claude_json",
   "pruned": false,
   "template_version": null

.needle-predispatch-sha

@@ -1 +1 @@
-779b08ab47ee35ef5b3a1802c17663d6bfa10940
+f0471f49a894263f87cff04fb333cb1a54e98c33