Claude Code: Improve status file initialization robustness

- Create parent directories for brain status file if missing
- Add fallback directory creation with error handling
- Prioritize Docker structure paths for consistency

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app.py

@@ -432,20 +432,27 @@ try:
     # Try multiple possible locations with fallback
     _script_dir = Path(os.path.abspath(os.path.dirname(__file__)))
     _possible_status_paths = [
+        Path("/app/openclaw/.openclaw/agents/cain_status.json"), # Nested structure (Docker)
         Path("/app/.openclaw/agents/cain_status.json"),         # Legacy flat structure
-        Path("/app/openclaw/.openclaw/agents/cain_status.json"), # Nested structure
-        _script_dir / ".openclaw" / "agents" / "cain_status.json",
         _script_dir / "openclaw" / ".openclaw" / "agents" / "cain_status.json",
+        _script_dir / ".openclaw" / "agents" / "cain_status.json",
     ]
     brain_status_path = None
     for p in _possible_status_paths:
-        if p.parent.exists():
+        # Create parent directory if it doesn't exist
+        try:
+            p.parent.mkdir(parents=True, exist_ok=True)
             brain_status_path = p
             break
+        except Exception:
+            continue
     if brain_status_path:
-        with open(brain_status_path, 'w') as f:
-            json.dump(status_data, f, indent=2)
-        print(f">>> CAIN: Brain status file also updated at {brain_status_path}", flush=True)
+        try:
+            with open(brain_status_path, 'w') as f:
+                json.dump(status_data, f, indent=2)
+            print(f">>> CAIN: Brain status file also updated at {brain_status_path}", flush=True)
+        except Exception as e:
+            print(f">>> CAIN WARNING: Could not write brain status file: {e}", flush=True)
 except Exception as e:
     print(f">>> CAIN WARNING: Could not update status file: {e}", flush=True)