chore(linear-static-3d-euler-beam): step 7 output

phases/linear-static-3d-euler-beam/index.json

@@ -61,7 +61,10 @@
     {
       "step": 7,
       "name": "cmake-test-foundation",
-      "status": "pending"
+      "status": "completed",
+      "started_at": "2026-08-09T03:53:12+0900",
+      "summary": "C++17 MSVC x64 Debug CMake foundation, normalized MKL/TBB/HDF5 targets, GoogleTest BuildInfo 2-test suite와 누적 implementation report를 RED/GREEN/VERIFY로 구축함",
+      "completed_at": "2026-08-09T04:44:04+0900"
     },
     {
       "step": 8,
@@ -170,4 +173,4 @@
     }
   ],
   "created_at": "2026-08-09T01:35:55+0900"
-}
+}