Phase 1 (miroir-cdo): Re-verification session - all tests pass

Re-verified completed Phase 1 Core Routing implementation.
All 169 tests pass (92.93s execution time).

Definition of Done remains verified:
- Rendezvous determinism with seed 0
- Minimal reshuffling on topology changes
- Uniform distribution across nodes
- RF=2 placement stability
- write_targets returns RG × RF nodes
- query_group distributes evenly
- covering_set returns one node per shard
- Merger passes all tests
- Coverage ≥ 90% (91.80% overall)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.beads/traces/miroir-cdo/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": 240718,
+  "exit_code": 0,
+  "outcome": "success",
+  "duration_ms": 138315,
   "input_tokens": null,
   "output_tokens": null,
   "cost_usd": null,
-  "captured_at": "2026-05-09T19:28:13.519467484Z",
+  "captured_at": "2026-05-09T19:34:32.439488766Z",
   "trace_format": "claude_json",
   "pruned": false,
   "template_version": null

.needle-predispatch-sha

@@ -1 +1 @@
-cfacb5160e7acd5c4e95f3a725544f862a163e6c
+b23bb7b47838cb799bb92e81d57a8ffad5e9081e

notes/miroir-cdo-session-2026-05-09-verify.md

@@ -0,0 +1,38 @@
+# Phase 1 (miroir-cdo): Re-verification Session
+
+## Date
+2026-05-09
+
+## Session Purpose
+Re-verification of completed Phase 1 Core Routing implementation.
+
+## Verification Results
+
+### Test Execution
+All 169 tests pass successfully (92.93s execution time):
+```
+test result: ok. 169 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
+```
+
+### Coverage Status
+Per previous verification (2026-05-09):
+- router.rs: 96.20%
+- topology.rs: 100.00%
+- scatter.rs: 100.00%
+- merger.rs: 94.67%
+- Overall: 91.80% (exceeds 90% requirement)
+
+### Definition of Done Status
+All Phase 1 acceptance criteria remain verified:
+- ✅ Rendezvous determinism
+- ✅ Minimal reshuffling on add/remove
+- ✅ Uniform distribution (64/3/RF=1)
+- ✅ RF=2 placement stability
+- ✅ write_targets returns RG × RF nodes
+- ✅ query_group distributes evenly
+- ✅ covering_set returns one node per shard
+- ✅ Merger passes all tests
+- ✅ Coverage ≥ 90%
+
+## Conclusion
+Phase 1 (miroir-cdo) Core Routing implementation is complete and verified. No additional work required.