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fix: 性能优化、前端转写器配置、任务进度丢失及 MLX Whisper 回退问题修复
### 性能优化 - 后端任务执行从串行锁改为 ThreadPoolExecutor 并发执行(默认3线程) - 添加 GZipMiddleware 响应压缩 + Nginx gzip 配置 - 数据库连接池参数优化(pool_size=10, max_overflow=20) - 视频帧提取并行化(ThreadPoolExecutor) - LLM 重试配置缓存到实例,避免每次请求读 env var - 前端路由级代码拆分(React.lazy + Suspense) - Vite manualChunks 拆分 markdown/markmap/vendor - MarkdownViewer 用 React.memo + useMemo 减少不必要渲染 - NoteHistory Fuse.js 实例 useMemo 缓存 - useTaskPolling 无待处理任务时跳过轮询 - 移除 antd 依赖(NoteForm Alert、modelForm Tag),改用 shadcn/ui ### 前端转写器配置(新功能) - 新增 TranscriberConfigManager(JSON 文件存储,替代环境变量) - 新增 GET/POST /transcriber_config API 端点 - 新增 GET /transcriber_models_status 模型下载状态查询 - 新增 POST /transcriber_download 后台模型下载触发 - 前端转写器设置页面:引擎选择、模型大小选择、模型下载管理 - deploy_status 端点同步从配置文件读取 ### Bug 修复 - 修复任务进行中切换页面后进度丢失:Home.tsx status 派生逻辑补全中间状态 - 修复 MLX Whisper 静默回退 fast-whisper:移除环境变量门控,macOS 下自动尝试导入 - MLX Whisper 不可用时抛出 RuntimeError 而非静默回退 - 前端展示 MLX Whisper 可用性状态,不可用时禁用保存 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@@ -4,6 +4,7 @@ from contextlib import asynccontextmanager
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import uvicorn
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from fastapi import FastAPI
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from starlette.middleware.cors import CORSMiddleware
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from starlette.middleware.gzip import GZipMiddleware
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from starlette.staticfiles import StaticFiles
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from dotenv import load_dotenv
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@@ -14,7 +15,7 @@ from app.exceptions.exception_handlers import register_exception_handlers
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# from app.db.provider_dao import init_provider_table
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from app.utils.logger import get_logger
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from app import create_app
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from app.transcriber.transcriber_provider import get_transcriber
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from app.services.transcriber_config_manager import TranscriberConfigManager
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from events import register_handler
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from ffmpeg_helper import ensure_ffmpeg_or_raise
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@@ -40,7 +41,10 @@ if not os.path.exists(out_dir):
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async def lifespan(app: FastAPI):
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register_handler()
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init_db()
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get_transcriber(transcriber_type=os.getenv("TRANSCRIBER_TYPE", "fast-whisper"))
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# 转写器不再在启动时强制初始化,而是在首次生成笔记时按需创建
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# 如果配置了不可用的类型(如 mlx-whisper 未安装),会在使用时报错而非静默回退
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_cfg = TranscriberConfigManager().get_config()
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logger.info(f"当前转写器配置: type={_cfg['transcriber_type']}, model_size={_cfg['whisper_model_size']}")
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seed_default_providers()
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yield
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@@ -58,6 +62,7 @@ app.add_middleware(
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allow_methods=["*"],
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allow_headers=["*"],
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)
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app.add_middleware(GZipMiddleware, minimum_size=1000)
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register_exception_handlers(app)
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app.mount(static_path, StaticFiles(directory=static_dir), name="static")
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app.mount("/uploads", StaticFiles(directory=uploads_dir), name="uploads")
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