feat：优化timing门控逻辑，减少消耗，提高速度

src/maisaka/builtin_tool/__init__.py

@@ -10,6 +10,8 @@ from src.llm_models.payload_content.tool_option import ToolDefinitionInput
 from .context import BuiltinToolRuntimeContext
 from .continue_tool import get_tool_spec as get_continue_tool_spec
 from .continue_tool import handle_tool as handle_continue_tool
+from .finish import get_tool_spec as get_finish_tool_spec
+from .finish import handle_tool as handle_finish_tool
 from .no_reply import get_tool_spec as get_no_reply_tool_spec
 from .no_reply import handle_tool as handle_no_reply_tool
 from .query_jargon import get_tool_spec as get_query_jargon_tool_spec
@@ -44,6 +46,7 @@ def get_action_tool_specs() -> List[ToolSpec]:
     """获取 Action Loop 阶段可用的内置工具声明。"""
 
     return [
+        get_finish_tool_spec(),
         get_reply_tool_spec(),
         get_view_complex_message_tool_spec(),
         get_query_jargon_tool_spec(),
@@ -63,6 +66,7 @@ def get_all_builtin_tool_specs() -> List[ToolSpec]:
 
     return [
         *get_timing_tool_specs(),
+        get_finish_tool_spec(),
         get_reply_tool_spec(),
         get_view_complex_message_tool_spec(),
         get_query_jargon_tool_spec(),
@@ -95,6 +99,7 @@ def build_builtin_tool_handlers(tool_ctx: BuiltinToolRuntimeContext) -> Dict[str
 
     return {
         "continue": lambda invocation, context=None: handle_continue_tool(tool_ctx, invocation, context),
+        "finish": lambda invocation, context=None: handle_finish_tool(tool_ctx, invocation, context),
         "reply": lambda invocation, context=None: handle_reply_tool(tool_ctx, invocation, context),
         "no_reply": lambda invocation, context=None: handle_no_reply_tool(tool_ctx, invocation, context),
         "query_jargon": lambda invocation, context=None: handle_query_jargon_tool(tool_ctx, invocation, context),