fix: children subagents couldn't properly send messages to parent inboxes

src/config/macros.rs

@@ -69,6 +69,7 @@ pub async fn macro_execute(
     macro_ctx.parent_supervisor = ctx.parent_supervisor.clone();
     macro_ctx.self_agent_id = ctx.self_agent_id.clone();
     macro_ctx.inbox = ctx.inbox.clone();
+    macro_ctx.parent_inbox = ctx.parent_inbox.clone();
     macro_ctx.escalation_queue = ctx.escalation_queue.clone();
     macro_ctx.current_depth = ctx.current_depth;
     macro_ctx.auto_continue_count = ctx.auto_continue_count;