Feat: add func Base class and add strategy logs, low search mode

src/memos/multi_mem_cube/single_cube.py

@@ -35,14 +35,17 @@
 
 if TYPE_CHECKING:
     from memos.api.product_models import APIADDRequest, APISearchRequest
+    from memos.mem_cube.navie import NaiveMemCube
+    from memos.mem_reader.simple_struct import SimpleStructMemReader
+    from memos.mem_scheduler.optimized_scheduler import OptimizedScheduler
 
 
 @dataclass
 class SingleCubeView(MemCubeView):
     cube_id: str
-    naive_mem_cube: Any
-    mem_reader: Any
-    mem_scheduler: Any
+    naive_mem_cube: NaiveMemCube
+    mem_reader: SimpleStructMemReader
+    mem_scheduler: OptimizedScheduler
     logger: Any
     searcher: Any
     deepsearch_agent: Any | None = None
@@ -155,7 +158,7 @@ def _search_text(
         Args:
             search_req: Search request
             user_context: User context
-            search_mode: Search mode (FAST, FINE, or MIXTURE)
+            search_mode: Search mode (fast, fine, or mixture)
 
         Returns:
             List of formatted memory items
@@ -227,6 +230,7 @@ def _fine_search(
         Returns:
             List of enhanced search results
         """
+        logger.info(f"Fine strategy: {FINE_STRATEGY}")
         if FINE_STRATEGY == FineStrategy.DEEP_SEARCH:
             return self._deep_search(search_req=search_req, user_context=user_context)
         elif FINE_STRATEGY == FineStrategy.AGENTIC_SEARCH: