Claude Code: Fix Cain entrypoint.sh - add missing status file paths for cleaning

- Add /app/cain_status.json to entrypoint.sh cleaning list (was missing)
- Fix _cleaned_at field to use literal 'entrypoint' instead of bash substitution
- This ensures stale 'unknown' errors are cleared from ALL possible status file locations

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

entrypoint.sh

@@ -53,9 +53,11 @@ import json
 from pathlib import Path
 
 status_files = [
-    Path('/data/cain_status.json'),
-    Path('/app/openclaw/.openclaw/agents/cain_status.json'),
-    Path('/app/.openclaw/agents/cain_status.json'),
+    Path('/data/cain_status.json'),  # Primary (OPENCLAW_DATA_DIR)
+    Path('/app/openclaw/.openclaw/agents/cain_status.json'),  # Nested structure
+    Path('/app/.openclaw/agents/cain_status.json'),  # Legacy flat structure
+    # Additional paths that app.py might use (for consistency)
+    Path('/app/cain_status.json'),
 ]
 
 cleaned = 0
@@ -68,7 +70,7 @@ for status_file in status_files:
             # Fix: if error is string 'unknown' or contains 'unknown', set to null
             if isinstance(error, str) and error.strip().lower() in ('unknown', 'none', 'null', ''):
                 data['error'] = None
-                data['_cleaned_at'] = '$(date -u +"%Y-%m-%dT%H:%M:%SZ")'
+                data['_cleaned_at'] = 'entrypoint'
                 with open(status_file, 'w') as f:
                     json.dump(data, f, indent=2)
                 cleaned += 1