Review fixes G0019, G0108: added hidden tests; revalidated

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014aUaQeLnwbb1zTpN7kHeat

tasks_gen/eval/G0143/generation.json

@@ -1,45 +0,0 @@
-{
- "id": "G0143",
- "pool": "eval",
- "object_type": "FUNC",
- "category": "E",
- "attempts": [
-  {
-   "stage": "validate",
-   "oracle": 0,
-   "null": 0
-  },
-  {
-   "stage": "bundle",
-   "errors": [
-    "category E: the contract object must be the seed object that the model changes in place (same name in seed, contract and reference)"
-   ],
-   "by_check": {
-    "static": 1
-   }
-  },
-  {
-   "stage": "validate",
-   "oracle": 0,
-   "null": 0
-  },
-  {
-   "stage": "validate",
-   "oracle": 0,
-   "null": 0
-  },
-  {
-   "stage": "revalidate",
-   "by": "harness fix 2026-10-03",
-   "change": "ADT activation fallback for a second FUNC write. Bundle not changed.",
-   "oracle": 0,
-   "null": 0,
-   "mutation": {
-    "valid": 0,
-    "killed": 0,
-    "ok": false
-   }
-  }
- ],
- "accepted": false
-}