feature: 增强编曲走带区UI/UX - #311

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/setup-java@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

'OudepMetadata.@Class' is obsolete

'OudepMetadata.@Class' is obsolete

'UProject.bpm' is obsolete: 'Since ustx v0.6'

'UProject.beatUnit' is obsolete: 'Since ustx v0.6'

'UProject.beatPerBar' is obsolete: 'Since ustx v0.6'

'Phonemizer.MsToTick(double)' is obsolete

'Phonemizer.MsToTick(double)' is obsolete

'OpusDecoder.OpusDecoder(int, int)' is obsolete: 'Use OpusCodecFactory methods which can give you native code if supported by your platform'

'OpusDecoder.OpusDecoder(int, int)' is obsolete: 'Use OpusCodecFactory methods which can give you native code if supported by your platform'

'JapaneseMonophoneG2p.LoadPack(byte[], Func<string, string>, Func<string, string>)' hides inherited member 'G2pPack.LoadPack(byte[], Func<string, string>, Func<string, string>)'. Use the new keyword if hiding was intended.