Step 533: add sprint 27 integration summary and closure gate

progress.md

@@ -8889,3 +8889,44 @@ packet escalation when non-retryable or unresolved conditions remain.
 - `editor/src/RetryEscalationProtocol.h` within header-size limit (`129` <= `600`)
 - `editor/tests/step532_test.cpp` within test-file size guidance (`171` lines)
 - Header-only architecture and naming conventions remain aligned with `ARCHITECTURE.md`
+
+### Step 533: Sprint 27 Integration + Summary
+**Status:** PASS (8/8 tests)
+
+Completes Sprint 27 integration by synthesizing Step 524-532 readiness signals
+into phase-level and sprint-level pass/fail outcomes with actionable summary
+notes.
+
+**Files added:**
+- `editor/src/Sprint27IntegrationSummary.h` - sprint integration module:
+  - aggregates all Phase 27a and 27b gate signals
+  - computes phase pass flags and final Sprint 27 pass flag
+  - emits failure-note diagnostics for missing gates
+  - emits constrained-execution completion notes on full pass
+- `editor/tests/step533_test.cpp` - 8 tests covering:
+  - full sprint pass path
+  - phase-specific failure blocking behavior
+  - success and failure note emission
+  - multi-failure aggregation
+  - all-false boundary behavior
+  - phase-status isolation on single gate failure
+
+**Files modified:**
+- `editor/CMakeLists.txt` - `step533_test` target
+
+**Verification run:**
+- `cmake -S editor -B editor/build-native` - PASS
+- `cmake --build editor/build-native --target step533_test step532_test` - PASS
+- `./editor/build-native/step533_test` - PASS (8/8)
+- `./editor/build-native/step532_test` - PASS (12/12) regression coverage
+
+**Architecture gate check:**
+- `editor/src/Sprint27IntegrationSummary.h` within header-size limit (`71` <= `600`)
+- `editor/tests/step533_test.cpp` within test-file size guidance (`135` lines)
+- Header-only architecture and naming conventions remain aligned with `ARCHITECTURE.md`
+
+**Sprint 27 totals (524-533):**
+- **Steps completed:** 10
+- **New tests in this sprint plan:** 112/112 passing
+- **Phase 27a (524-528):** 56/56 passing
+- **Phase 27b (529-533):** 56/56 passing