chore: 完善从节点连接提示音

examples/stereo/Makefile

@@ -2,7 +2,7 @@ build:
 	docker run --rm -v $(shell pwd):/app idootop/open-xiaoai-runtime:oh2p \
 	cargo build --target armv7-unknown-linux-gnueabihf --release
 
-# 部署到小爱音箱（调试用）
+# 部署到小爱音箱（调试自用）
 deploy:
 	dd if=target/armv7-unknown-linux-gnueabihf/release/stereo \
 	| sshpass -p open-xiaoai ssh -o HostKeyAlgorithms=+ssh-rsa root@192.168.31.153 "dd of=/data/stereo"

examples/stereo/src/app/entry.rs

@@ -13,14 +13,21 @@ pub async fn run_stereo() -> Result<()> {
         return Ok(());
     }
 
-    let mode = &args[1];
+    let mode = if args[1].to_lowercase() == "master" {
+        "主节点"
+    } else {
+        "从节点"
+    };
+
     let role = if args[2].to_lowercase() == "left" {
         ChannelRole::Left
     } else {
         ChannelRole::Right
     };
 
-    if mode == "master" {
+    println!("🚗 当前为: {} {}", mode, role.to_string());
+
+    if mode == "主节点" {
         run_master(role).await
     } else {
         run_slave(role).await

examples/stereo/src/app/master.rs

@@ -26,8 +26,6 @@ struct SlaveSession {
 }
 
 pub async fn run_master(master_role: ChannelRole) -> Result<()> {
-    println!("--- 主节点模式 ({}) ---", master_role.to_string());
-
     // 0. 设置 ALSA 重定向
     println!("🔥 启动中，请稍等...");
     let _alsa_guard = AlsaRedirector::new()?;

examples/stereo/src/app/slave.rs

@@ -9,6 +9,7 @@ use crate::net::protocol::{AudioPacket, ChannelRole, ControlPacket};
 use crate::utils::jitter_buffer::JitterBuffer;
 use crate::utils::sync::{ClockSync, now_us};
 use anyhow::{Result, anyhow};
+use std::process::Command;
 use std::sync::Arc;
 use std::time::Duration;
 use tokio::io::{AsyncReadExt, AsyncWriteExt};
@@ -16,8 +17,6 @@ use tokio::sync::{Mutex, mpsc};
 
 /// 运行从节点模式
 pub async fn run_slave(role: ChannelRole) -> Result<()> {
-    println!("--- 从节点模式 ({}) ---", role.to_string());
-
     loop {
         match handle_connection(role.clone()).await {
             Err(e) => {
@@ -134,6 +133,14 @@ async fn handle_connection(role: ChannelRole) -> Result<()> {
 
     // 8. 播放主循环
     println!("✅ 主节点已连接，音频串流中...");
+    let _ = Command::new("sh")
+        .arg("-c")
+        .arg(format!(
+            "/usr/sbin/tts_play.sh \"主节点已连接，{}\" >/dev/null 2>&1",
+            role.to_string()
+        ))
+        .status();
+
     let mut pcm_buf = vec![0i16; config.frame_size];
     let mut last_seq: Option<u32> = None;
     let mut last_packet_time = now_us();