remove：无用配置，整理配置文件

src/maisaka/builtin_tool/__init__.py

@@ -47,7 +47,7 @@ def get_action_tool_specs() -> List[ToolSpec]:
         get_reply_tool_spec(),
         get_view_complex_message_tool_spec(),
         get_query_jargon_tool_spec(),
-        get_query_memory_tool_spec(enabled=bool(global_config.maisaka.enable_memory_query_tool)),
+        get_query_memory_tool_spec(enabled=bool(global_config.memory.enable_memory_query_tool)),
         get_send_emoji_tool_spec(),
     ]
 

src/maisaka/builtin_tool/query_memory.py

@@ -161,7 +161,7 @@ async def handle_tool(
             f"不支持的检索模式：{mode}。可选值：search/time/hybrid/episode/aggregate。",
         )
 
-    default_limit = max(1, int(getattr(global_config.maisaka, "memory_query_default_limit", 5) or 5))
+    default_limit = max(1, global_config.memory.memory_query_default_limit)
     try:
         limit = int(invocation.arguments.get("limit", default_limit) or default_limit)
     except (TypeError, ValueError):