chore(results-and-pipeline): step 0 output

phases/results-and-pipeline/index.json

@@ -5,7 +5,10 @@
     {
       "step": 0,
       "name": "result-database",
-      "status": "pending"
+      "status": "completed",
+      "started_at": "2026-08-01T00:01:45+0900",
+      "summary": "Added HDF5-independent nodal result aggregates and results-stage validation for sizes, duplicate nodes/steps/frames, and finite values with focused tests.",
+      "completed_at": "2026-08-01T00:14:53+0900"
     },
     {
       "step": 1,
@@ -22,5 +25,6 @@
       "name": "cli-pipeline-integration",
       "status": "pending"
     }
-  ]
+  ],
-}
+  "created_at": "2026-08-01T00:01:45+0900"
+}