fix:收敛A_Memorix最小回归修复

最小修复聊天摘要写回游标恢复、摘要元数据透传、webui反馈参数解析、embedding批次缓存索引、图存储清理与配置默认值回归，并补齐针对性回归测试，确保问题解决且不影响现有逻辑。

src/webui/app.py

@@ -208,7 +208,7 @@ def _resolve_static_path() -> Path | None:
     # 开发环境优先允许复用仓库里的现成 dist
     base_dir = _get_project_root()
     static_path = base_dir / "dashboard" / "dist"
-    if static_path.exists():
+    if static_path.is_dir() and (static_path / "index.html").exists():
         return static_path
 
     try:

src/webui/routers/memory.py

@@ -365,11 +365,13 @@ async def _profile_delete_override(person_id: str) -> dict:
 
 
 async def _feedback_list(limit: int, status: str, rollback_status: str, query: str) -> dict:
+    statuses = [item.strip() for item in str(status or "").split(",") if item.strip()]
+    rollback_statuses = [item.strip() for item in str(rollback_status or "").split(",") if item.strip()]
     return await memory_service.feedback_admin(
         action="list",
         limit=limit,
-        status=status,
-        rollback_status=rollback_status,
+        statuses=statuses,
+        rollback_statuses=rollback_statuses,
         query=query,
     )