feat: M1.1 完成 + M1.2 启动 — 全量更新

M1.1 收尾:
- 24项 P0/P1/P2 bug 修复 (Rust 107 tests + Flutter 15 tests)
- Flutter App v0.3: cupertino_icons 修复, 单元测试, 调试面板, APK 52.6MB
- 示例插件完善: manifest.json + 请求/响应示范 + 7个测试
- API 文档重写 (以 routes.rs 为唯一权威)
- MILESTONES.md 更新至 100%

M1.2 启动:
- P0: 插件管理 API 闭环 (handle_manager_message Custom 分支 + broadcast_plugin_states)
- ServiceManager 集成测试 8/8 (tests/m1_2_service_manager.rs)
- M1.2 测试计划 (docs/M1.2_TEST_PLAN.md, 18个E2E场景)
- 动态插件系统: auto_rollback + version_manager GC + 路径穿越防护

总计: Rust 115/115 测试, Flutter 15/15 测试, 零 warning

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/plugins/http/mod.rs

@@ -11,7 +11,9 @@ use anyhow::{Context, Result};
 use serde::Serialize;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{Arc, Condvar, Mutex};
+use std::thread::JoinHandle;
 use tokio::sync::broadcast;
+use tokio::sync::{oneshot, Mutex as AsyncMutex};
 
 #[derive(Serialize)]
 struct WsEvent<'a, T> {
@@ -36,6 +38,7 @@ struct PendingWifiResponse {
 }
 
 pub(crate) struct HttpState {
+    wifi_request_lock: AsyncMutex<()>,
     wifi_response: Mutex<PendingWifiResponse>,
     wifi_response_cv: Condvar,
     last_wifi_result: Mutex<Option<String>>,
@@ -60,6 +63,7 @@ impl HttpState {
         };
 
         Self {
+            wifi_request_lock: AsyncMutex::new(()),
             wifi_response: Mutex::new(PendingWifiResponse {
                 version: 0,
                 payload: None,
@@ -202,6 +206,8 @@ impl HttpState {
 pub struct HttpPlugin {
     ctx: Option<PluginContext>,
     state: Option<Arc<HttpState>>,
+    shutdown_tx: Option<oneshot::Sender<()>>,
+    server_thread: Option<JoinHandle<()>>,
 }
 
 impl HttpPlugin {
@@ -209,6 +215,8 @@ impl HttpPlugin {
         Self {
             ctx: None,
             state: None,
+            shutdown_tx: None,
+            server_thread: None,
         }
     }
 }
@@ -244,6 +252,8 @@ impl Plugin for HttpPlugin {
     }
 
     fn start(&mut self) -> Result<()> {
+        self.stop()?;
+
         let ctx = self
             .ctx
             .as_ref()
@@ -263,7 +273,9 @@ impl Plugin for HttpPlugin {
                 .context("http plugin state is not initialized")?,
         );
 
-        std::thread::spawn(move || {
+        let (shutdown_tx, shutdown_rx) = oneshot::channel();
+
+        let server_thread = std::thread::spawn(move || {
             let runtime = match tokio::runtime::Builder::new_multi_thread()
                 .enable_all()
                 .build()
@@ -294,10 +306,18 @@ impl Plugin for HttpPlugin {
                 }
 
                 println!("[HttpPlugin] listening on http://{addr}");
-                warp::serve(routes).run(addr).await;
+                warp::serve(routes)
+                    .bind_with_graceful_shutdown(addr, async move {
+                        let _ = shutdown_rx.await;
+                    })
+                    .1
+                    .await;
             });
         });
 
+        self.shutdown_tx = Some(shutdown_tx);
+        self.server_thread = Some(server_thread);
+
         Ok(())
     }
 
@@ -344,6 +364,16 @@ impl Plugin for HttpPlugin {
     }
 
     fn stop(&mut self) -> Result<()> {
+        if let Some(shutdown_tx) = self.shutdown_tx.take() {
+            let _ = shutdown_tx.send(());
+        }
+
+        if let Some(server_thread) = self.server_thread.take() {
+            server_thread
+                .join()
+                .map_err(|_| anyhow::anyhow!("http server thread panicked"))?;
+        }
+
         Ok(())
     }
 }