feat

• 字幕校对模块支持导入与导出多种字幕格式（SRT / VTT / ASS / LRC / TXT），并可在任务设置中选择输出格式 Subtitle proofreading now supports importing and exporting multiple subtitle formats (SRT / VTT / ASS / LRC / TXT), with a selectable output format in task settings
• 新增小牛翻译（NiuTrans）、腾讯云翻译、讯飞翻译三家翻译服务商 Added three new translation providers: NiuTrans, Tencent Cloud, and iFlytek
• 新增粤语（yue）源语言选项，提升粤语视频的语音识别准确度 Added Cantonese (yue) as a source language option for more accurate recognition of Cantonese videos fix
• 修复部分语言码（如繁体中文 zh-hant）传入 Whisper 导致程序崩溃的问题，并在 CUDA 不可用时自动回退到 CPU Fixed a crash when certain language codes (e.g., Traditional Chinese zh-hant) were passed to Whisper, with automatic CPU fallback when CUDA is unavailable
• 将 zh-cn / zh-tw / zh-hant / zh-hans 等中文变体统一映射为 zh，提升中文识别准确度 Unified all Chinese variants (zh-cn / zh-tw / zh-hant / zh-hans) to zh for better Chinese recognition accuracy
• 兼容新版 nvidia-smi 输出格式，修复部分 NVIDIA 显卡无法被检测、导致 GPU 加速不可用的问题 Compatible with the latest nvidia-smi output format, fixing GPU detection failures that disabled acceleration on some NVIDIA cards
• 修复字幕拆分弹窗内容过长时无法滚动、看不到确认按钮的问题 Fixed the subtitle split dialog so it scrolls when content is long and the confirm button stays visible
• 修复音频提取、字幕合并等进度在缺少百分比信息时不更新的问题（改用 timemark 推算进度） Fixed progress not updating during audio extraction and subtitle merging when percentage info is unavailable (now derived from timemark)
• 校验 AI 翻译返回的条数，避免翻译结果与原文错位 Validate the count of AI translation results to prevent misalignment between translations and source text
• 为各翻译服务商的请求增加超时控制，避免单次请求卡死导致整体翻译进度停滞 Added request timeouts for translation providers to prevent a single stuck request from halting overall progress
• 修复字幕校对界面点击第一条字幕时，视频与列表跳转到错误位置的问题 Fixed the proofreading editor jumping the video and list to the wrong position when clicking the first subtitle