feat: study modes (fast/parallel) and course-container completion fix

- settings: study.mode fast|normal and study.parallel 1-5

- normal mode: one headless browser per video, visibility keep-alive, auto-degrade when the platform enforces order

- report study/log/detail/save before isComplete; drop lastProgressTime on completion

- complete periodType 10/13 container nodes and recompute counters via PUT calFinalScore

- capture mode: POST /api/capture records all XHR/fetch including new tabs

- UI: study mode in settings, capture / stop-capture menu items

start.bat

@@ -0,0 +1,39 @@
+@echo off
+chcp 65001 >nul
+title 多账号学习控制台 · 东莞市教师培训平台
+cd /d "%~dp0"
+
+echo ============================================
+echo   多账号学习控制台  jspx.dgjy.net
+echo ============================================
+echo.
+
+where python >nul 2>nul
+if errorlevel 1 (
+  echo [错误] 未找到 python，请先安装 Python 3.10+ 并加入 PATH
+  pause
+  exit /b 1
+)
+
+where node >nul 2>nul
+if errorlevel 1 (
+  if not exist "%NODE_BIN%" (
+    echo [警告] 未在 PATH 中找到 node。若登录报错，请设置环境变量 NODE_BIN 指向 node.exe
+  )
+)
+
+python -c "import fastapi, uvicorn, requests, bs4" >nul 2>nul
+if errorlevel 1 (
+  echo [安装依赖] fastapi uvicorn requests beautifulsoup4 lxml
+  python -m pip install -r requirements.txt
+)
+
+echo.
+echo 启动中...  浏览器请打开:  http://127.0.0.1:8848
+echo 关闭本窗口即停止服务。
+echo.
+
+start "" http://127.0.0.1:8848
+python app.py
+
+pause