fix: isolate startup tools and preview dialogs

backend/services/brains/prompt_brain.py

@@ -84,8 +84,13 @@ class PromptBrain(BaseBrain):
         self._opening_started = False
         self._opening_finished = not bool(self._startup_actions("opening"))
         self._startup_failed = False
+        llm_tool_ids = (
+            set(cfg.llm_tool_ids) if cfg.llm_tool_ids is not None else None
+        )
         schemas: list[FunctionSchema] = []
         for tool in cfg.tools:
+            if llm_tool_ids is not None and tool.id not in llm_tool_ids:
+                continue
             if tool.type == "end_call":
                 schema, handler = self._make_end_call_tool(tool, runtime)
             elif tool.type in {"http", "mcp", "client"}: