Claude Code: Fix path resolution - check directory is writable

error_handlers.py

@@ -85,7 +85,8 @@ def _resolve_status_file() -> Path:
     # Priority 2: Use OPENCLAW_DATA_DIR (set in Docker)
     base_dir = _get_base_dir()
     candidate = base_dir / "cain_status.json"
-    if candidate.parent.exists():
+    # Check if directory is writable (file will be created if needed)
+    if candidate.parent.exists() and os.access(candidate.parent, os.W_OK):
         return candidate
 
     # Priority 3: Search relative to this script's location