fix subagent max iteration limit

nanobot/agent/loop.py

@@ -258,6 +258,7 @@ class AgentLoop:
             exec_config=self.exec_config,
             restrict_to_workspace=restrict_to_workspace,
             disabled_skills=disabled_skills,
+            max_iterations=self.max_iterations,
         )
         self._unified_session = unified_session
         self._max_messages = max_messages if max_messages > 0 else 120
@@ -307,6 +308,10 @@ class AgentLoop:
         self.commands = CommandRouter()
         register_builtin_commands(self.commands)
 
+    def _sync_subagent_runtime_limits(self) -> None:
+        """Keep subagent runtime limits aligned with mutable loop settings."""
+        self.subagents.max_iterations = self.max_iterations
+
     def _apply_provider_snapshot(self, snapshot: ProviderSnapshot) -> None:
         """Swap model/provider for future turns without disturbing an active one."""
         provider = snapshot.provider
@@ -531,6 +536,8 @@ class AgentLoop:
 
         Returns (final_content, tools_used, messages, stop_reason, had_injections).
         """
+        self._sync_subagent_runtime_limits()
+
         loop_hook = _LoopHook(
             self,
             on_progress=on_progress,