chore(solver-bootstrap): step 0 output

phases/solver-bootstrap/index.json

@@ -5,7 +5,10 @@
     {
       "step": 0,
       "name": "harness-self-tests",
-      "status": "pending"
+      "status": "completed",
+      "summary": "Added tests/harness/test_config.py, test_discovery.py, and test_process.py characterization tests for documented Harness contracts.",
+      "started_at": "2026-07-29T23:58:15+0900",
+      "completed_at": "2026-07-30T00:02:27+0900"
     },
     {
       "step": 1,
@@ -22,5 +25,6 @@
       "name": "core-ids-and-diagnostics",
       "status": "pending"
     }
-  ]
+  ],
-}
+  "created_at": "2026-07-29T23:58:15+0900"
+}