release_premium_v12.5.0

• set Android TXLiteAVSDK_Player_Premium to 12.5.0.17567，tag：release_premium_v12.5.0
• set iOS TXLiteAVSDK_Player_Premium to 12.5.18359， tag：release_premium_v12.5.0
• Added the setRenderMode method to the player, allowing configuration of the tiling mode for video rendering.
• Fixed an issue on Android where the player screen would turn black after pausing, moving to the background, and then returning to the foreground.
• Optimized the delay of the first frame rendering in the Flutter player compared to event triggers.
• Improved the screen orientation switching logic of the super_player_widget component by unifying texture sharing between portrait and landscape modes, enhancing the user experience during orientation changes.
• On iOS, Picture-in-Picture (PiP) for live streaming will automatically switch to a layer-based playback mode for iOS 15.0 and above. [Inspired by live streaming practices, this uses contentSource to implement custom PiP rendering, avoiding playback glitches caused by PiP window resizing.]
• Added a simple license polling mechanism on the demo side to prevent playback failures due to prolonged network disconnections during the first launch.
• Fixed a memory leak issue in the Android Picture-in-Picture service under certain conditions.
• Resolved the issue where Android Picture-in-Picture resizing animations displayed a semi-transparent black shadow effect.
• On iOS, after calling stopPlay, the startTime is no longer cleared, aligning the behavior with the Android implementation.