feat: judge recorded runs again offline

core_probe rejudge appends, for each live record the oracle now judges otherwise, a record with the same runs judged again: verdicts, bios_used and inputs.oracle recomputed, supersedes the earlier one, judged_at and judged_by beside recorded_at. Records of another probe are left to it. The campaign reads a superseded record as its successor, and a file the log shows refused or loaded settles validation with no BIOS screen.

scripts/campaign.py

@@ -1281,15 +1281,21 @@ class Campaign:
         self.settle(unit.emulator, content, core, index, entry, [verdict])
 
     def read_record(self, emulator: str, rid: str | None) -> dict | None:
+        """A record by its id, or the record that supersedes it: a run
+        judged again offline is read as judged last."""
         if not rid:
             return None
         path = self.paths.root / mr.records_path(emulator)
         if not path.is_file():
             return None
-        for line in path.read_text(encoding="utf-8").splitlines():
-            if f'"id":"{rid}"' in line:
-                return json.loads(line)
-        return None
+        records = [json.loads(line) for line in path.read_text(encoding="utf-8").splitlines()]
+        by_id = {r["id"]: r for r in records}
+        successor = {r["supersedes"]: r["id"] for r in records if r.get("supersedes")}
+        seen = set()
+        while rid in successor and rid not in seen:
+            seen.add(rid)
+            rid = successor[rid]
+        return by_id.get(rid)
 
     def judged(self, emulator: str, rid: str) -> bool:
         """True for a record the boot oracle judged: only those prove a field."""