feat(system):1.调整编译脚本. 2.用以下指令开启系统允许该程序浮窗功能：

adb shell appops set io.github.miuzarte.scrcpyforandroid SYSTEM_ALERT_WINDOW allow

build_apk.ps1

@@ -1,6 +1,6 @@
 param(
     [ValidateSet("debug", "release")]
-    [string]$BuildType = "release"
+    [string]$BuildType = "debug"
 )
 
 $ErrorActionPreference = "Stop"
@@ -21,6 +21,11 @@ Write-Host ""
 Push-Location $ScriptDir
 
 try {
+    # 停止旧 daemon（可能被 VS Code JRE 污染），失败也忽略
+    Write-Host ">>> Stopping old Gradle daemon..." -ForegroundColor Gray
+    .\gradlew.bat --stop 2>$null
+    Write-Host ""
+
     if ($BuildType -eq "release") {
         Write-Host ">>> Building Release APK..." -ForegroundColor Green
         .\gradlew.bat :app:assembleRelease --console=plain