docs(shell-surface-pressure-load): close implementation gate

docs/shell-surface-pressure-load/build-test.md

@@ -76,8 +76,19 @@ verification을 실행하지 않았다.
 - agent-owned classification: `passed`
 - 실패 classification: 없음 (`configure`, `compile`, `link`, `test`,
   `reference-comparison`, `artifact`, `environment`, `regression` 모두 없음)
-- automatic Stop disposition: turn 종료 때 실행될 authoritative whole-project evidence;
-  이 보고서에는 실행 전 결과를 꾸며 쓰지 않는다.
+- automatic Stop disposition: Harness phase completed locally at
+  `2026-09-01 17:43:57`. The single automatic Stop whole-project MSVC x64
+  Debug build passed. It ran `cmake --build .harness/build --config Debug`,
+  then `ctest --test-dir .harness/build -C Debug --show-only=json-v1` with
+  nonzero discovery, and `ctest --test-dir .harness/build -C Debug
+  --output-on-failure`; the final full CTest result was `362/362 PASS`,
+  `0 failed`.
+- automatic Stop evidence sources: 
+  `phases/shell-surface-pressure-load/step7-output.json`,
+  `.harness/build/Testing/Temporary/LastTest.log`, and phase/commit metadata
+  `2c91462`, `bf2339c`, `c4d1e2a`. Classification: `pass`; failed tests:
+  none. Duration: not separately preserved in committed report; completion
+  timestamp and LastTest log are authoritative.
 - Step 7은 source/header/test/CMake/Harness/tolerance/upstream contract/reference artifact를
   변경하지 않았고, 세 Gate 6 보고서 및 허용된 Step 7 status/summary만 변경한다.