fix(ble): 修复首次搜索时 stopDiscovery 误报适配器未打开错误

stopDiscoverySilently 移入 initialized 判断块内，仅在适配器已初始化时才尝试停止扫描

hooks/useBluetoothDiscovery.js

@@ -384,7 +384,7 @@ export function createBluetoothDiscovery(options = {}) {
     }
 
     offStateChange = controller.ble.on('state:change', (state) => {
-      console.debug('state:change', state)
+      // console.debug('state:change', state)
       onStageChange(state.stage)
 
       if (state.profileId && state.profileId !== currentProfileId) {
@@ -615,11 +615,9 @@ export function createBluetoothDiscovery(options = {}) {
     clearDiscoveryPollTimer()
     clearAutoStopTimer()
 
-    // 先停止上一次残留扫描
-    await stopDiscoverySilently()
-
     // 重置 BLE 适配器：关闭并重开，确保每次搜索都是干净的初始状态
     if (initialized) {
+      await stopDiscoverySilently()
       unbindControllerEvents()
       await controller.ble.closeAdapter()
       await delay(RESTART_SCAN_DELAY_MS)