fix: 修复SmartMediaProjectionManager权限死循环问题

- 重写onStop回调：添加isCreating()检查和Holder状态判断，避免误判权限丢失
- 重写attemptSilentRecovery()：只从Holder获取已有对象，禁止重新创建MediaProjection
- 重写checkAndRestoreExistingPermission()：只从Holder获取，不再调用getMediaProjection
- 重写createMediaProjectionSafely()：通过safeGetOrCreateProjection统一创建入口
- 与Android15MediaProjectionManager/AccessibilityRemoteService/ScreenCaptureManager/RemoteControlForegroundService的修复配合，彻底消除死循环

app/src/main/java/com/hikoncont/manager/SmartMediaProjectionManager.kt

@@ -490,21 +490,18 @@ class SmartMediaProjectionManager(
     }
     
     /**
-     * 检查并恢复现有权限
+     * 检查并恢复现有权限 - 只从 Holder 获取已有对象
      */
     private fun checkAndRestoreExistingPermission() {
         try {
-            val permissionData = MediaProjectionHolder.getPermissionData()
-            if (permissionData != null) {
-                val (resultCode, resultData) = permissionData
-                if (resultData != null) {
-                    Log.i(TAG, "📱 发现现有权限数据，尝试恢复")
-                    val projection = createMediaProjectionSafely(resultCode, resultData)
-                    if (projection != null) {
-                        Log.i(TAG, "✅ 现有权限恢复成功")
-                        notifyPermissionRecovered()
-                    }
-                }
+            // 只从 Holder 获取已有对象，不重新创建
+            val existingProjection = MediaProjectionHolder.getMediaProjection()
+            if (existingProjection != null) {
+                Log.i(TAG, "✅ Holder中已有有效MediaProjection，直接复用")
+                mediaProjection = existingProjection
+                notifyPermissionRecovered()
+            } else {
+                Log.d(TAG, "📱 Holder中无有效MediaProjection，等待权限授予")
             }
         } catch (e: Exception) {
             Log.e(TAG, "❌ 检查现有权限失败", e)