[W12-log] sprint-log: agent W12 commit log + Round 3 closure + sprint totals

Author: AdaWorldAPI

.claude/board/sprint-log/agents/agent-W12.md

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+# Agent W12 — medcare-realtime/tests/regulatory.rs
+
+**Round:** 3 (Stage 3 — sprint closure)
+**Owner:** crates/medcare-realtime/tests/regulatory.rs (13 tests)
+**Commit:** medcare-rs `6152f9a`
+**Status:** ✅ committed (Sprint closure)
+
+## Action
+
+Regulatory-invariant tests pinning §73 SGB V + BMV-Ä §57 + HIPAA
+audit + BtM Escalate paths. 13 tests in 4 categories.
+
+## Coverage
+
+**§73 SGB V (primary-care visibility):** 3 tests
+**BMV-Ä §57 (Anamnese append-only — CRITICAL #1 carry-forward):** 3 tests
+**Receptionist safety triage (CRITICAL #2 carry-forward):** 3 tests
+**BtM/finalize/anonymize Escalate (Meta-1 #3 carry-forward, v1 limitation):** 3 tests
+**PR #29 inheritance:** 1 test (Arc-shared policy)
+
+## v1 limitations explicitly documented
+
+The 3 BtM/finalize/anonymize tests assert `decision.is_allowed()` —
+the CURRENT v1 behavior. They include doc comments stating the
+EXPECTED FUTURE behavior (Escalate when row context lands). Future
+sessions read these as the spec to flip.
+
+## Round 3 closure summary
+
+**Files committed (4 medcare-realtime files):**
+
+| File | LOC | Tests | SHA |
+|---|---|---|---|
+| src/gate.rs | 360 | 13 | `702e863` |
+| src/lib.rs (update) | 50 | — | `9c54342` |
+| tests/integration.rs | 145 | 7 | `cec95f5` |
+| tests/regulatory.rs | 270 | 13 | `6152f9a` |
+
+**Total Round 3:** 4 commits, ~825 LOC, 33 tests.
+
+**Acceptance vs. SPRINT_LOG.md Round 3 criteria:**
+- ✅ `impl MembraneGate for MedCareMembraneGate` mirrors PR #29
+- ✅ Builders: new, from_medcare_policy, with_write_predicate, with_read_depth, evaluate
+- ✅ 11+ unit tests covering each role × entity × commit/read path
+  (13 in gate.rs, 7 integration, 13 regulatory = 33 total)
+- ✅ §73 SGB V tests cover gate-layer expectations + boundary doc for
+  row-level RLS
+- ✅ Three TD caveats captured (faculty-blind, escalate-lossy, first-vs-any)
+- ⚠️ BtM Escalate path documented but not implemented in v1 (gate doesn't
+  see row context — explicit limitation)
+
+## Self-review
+
+- ✅ Test names encode the regulatory citation directly
+- ✅ Loop-over-predicate / loop-over-entity / loop-over-depth patterns
+  catch shape-drift on future entity-catalogue changes
+- ⚠️ Action operations (Operation::Act) not exercised via gate — gate
+  only routes Read/Write per `gate_commit: bool`. Anamnese.append etc.
+  must go through policy.evaluate directly.
+- ⚠️ Performance claim (20-200 ns) unverified — defer to bench harness
+
+## Sprint totals
+
+**12 worker agents × 3 rounds + 2 revision passes = 14 worker commits**
+**3 meta agents = 3 review commits**
+**+ workspace registration + branch creation + sprint-log scaffolding**
+
+medcare-rs branch: 14 commits
+- Round 1: 6 + 2 revisions (W1-W4 + W3-rev2 + W4-rev2)
+- Round 2: 4 + 1 revision (W5-W8 + W7-rev2)
+- Round 3: 4 (W9-W12)
+
+lance-graph branch (sprint-log + meta reviews): ~16 commits
+- SPRINT_LOG.md + 12 agent log entries + 3 meta reviews