fix: handle TOCTOU race in list_runs state file read

Remove exists() check and wrap open/load in try/except to handle the
case where state.json is deleted between the check and open. A missing
or corrupt state file now skips that run instead of crashing the
entire list_runs operation.

Author: Quratulain-bilal

src/specify_cli/workflows/engine.py

@@ -1582,10 +1582,12 @@ def list_runs(self) -> list[dict[str, Any]]:
             if not run_dir.is_dir():
                 continue
             state_path = run_dir / "state.json"
-            if state_path.exists():
+            try:
                 with open(state_path, encoding="utf-8") as f:
                     state_data = json.load(f)
                 runs.append(state_data)
+            except (FileNotFoundError, json.JSONDecodeError, OSError):
+                continue
         return runs