fix(knowledge): entrystatus enum 大小寫修正 'archived' → 'ARCHIVED'

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

apps/api/src/services/knowledge_service.py

@@ -253,7 +253,7 @@ class KnowledgeService:
                     "WHERE entry_type = 'anti_pattern' "
                     "AND symptoms_hash = :hash "
                     "AND created_at >= :cutoff "
-                    "AND status != 'archived' "
+                    "AND status != 'ARCHIVED' "
                     "ORDER BY created_at DESC LIMIT 5"
                 ),
                 {"hash": symptoms_hash, "cutoff": cutoff},