fix: Windows compatibility and startup scripts

- Add explicit .env loading in config.py for Windows compatibility
- Add backend directory to sys.path in main.py to fix module imports
- Add start.bat and start-full.bat for Windows startup
- Add frontend/package-lock.json for dependency tracking

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/app/config.py

@@ -1,9 +1,17 @@
 import base64
+import os
 from pathlib import Path
 from typing import Optional
 from pydantic import field_validator
 from pydantic_settings import BaseSettings, SettingsConfigDict
 
+# Load .env file explicitly - Windows compatibility
+# This ensures environment variables are loaded before Settings instantiation
+_env_path = Path(__file__).parent.parent.parent / '.env'
+if _env_path.exists():
+    from dotenv import load_dotenv
+    load_dotenv(_env_path, override=True)
+
 
 class Settings(BaseSettings):
     """应用配置，从环境变量加载."""

backend/app/main.py

@@ -8,8 +8,15 @@ This module creates and configures the FastAPI application with:
 - CORS middleware
 - Exception handlers
 """
-from contextlib import asynccontextmanager
+import sys
 from pathlib import Path
+
+# Add backend directory to Python path for imports to work
+backend_dir = Path(__file__).parent.parent
+if str(backend_dir) not in sys.path:
+    sys.path.insert(0, str(backend_dir))
+
+from contextlib import asynccontextmanager
 from typing import Callable
 
 from fastapi import FastAPI, Request, status

start-full.bat

@@ -0,0 +1,100 @@
+@echo off
+chcp 65001 >nul
+echo ========================================
+echo   Git Repo Manager - 一键安装启动
+echo ========================================
+echo.
+
+REM 步骤 1: 检查 Python
+python --version >nul 2>&1
+if errorlevel 1 (
+    echo [错误] 未找到 Python！
+    echo 请先安装 Python 3.8+: https://www.python.org/downloads/
+    pause
+    exit /b 1
+)
+
+echo [√<>] Python 已安装
+echo.
+
+REM 步骤 2: 检查 Node.js
+node --version >nul 2>&1
+if errorlevel 1 (
+    echo [警告] 未找到 Node.js，前端开发需要用到
+    echo 安装 Node.js: https://nodejs.org/
+    echo.
+)
+
+REM 步骤 3: 检查 .env 文件
+if not exist ".env" (
+    if exist ".env.example" (
+        echo [1/4] 复制 .env.example 到 .env...
+        copy .env.example .env >nul
+        echo [提示] 请编辑 .env 文件，设置您的密钥！
+        echo         需要设置 GM_ENCRYPT_KEY 和 GM_API_TOKEN
+        echo.
+        notepad .env
+        pause
+    ) else (
+        echo [错误] .env.example 文件不存在！
+        pause
+        exit /b 1
+    )
+) else (
+    echo [1/4] .env 配置文件已存在... ✓
+)
+echo.
+
+REM 步骤 4: 安装 Python 依赖
+echo [2/4] 检查 Python 依赖...
+pip show fastapi >nul 2>&1
+if errorlevel 1 (
+    echo 正在安装 Python 依赖...
+    pip install -r backend\requirements.txt
+    if errorlevel 1 (
+        echo [错误] 依赖安装失败！
+        pause
+        exit /b 1
+    )
+) else (
+    echo [2/4] Python 依赖已安装... ✓
+)
+echo.
+
+REM 步骤 5: 初始化数据库
+if not exist "data\git_manager.db" (
+    echo [3/4] 初始化数据库...
+    python -m backend.init_db
+    if errorlevel 1 (
+        echo [错误] 数据库初始化失败！
+        pause
+        exit /b 1
+    )
+) else (
+    echo [3/4] 数据库已初始化... ✓
+)
+echo.
+
+REM 步骤 6: 安装前端依赖（可选）
+if exist "frontend\package.json" (
+    if not exist "frontend\node_modules\" (
+        echo [提示] 安装前端依赖...
+        echo 跳过（可选，开发模式需要）
+        REM cd frontend && npm install
+    )
+)
+echo.
+
+REM 步骤 7: 启动服务
+echo [4/4] 启动 Git Repo Manager...
+echo.
+echo ========================================
+echo   服务地址: http://%GM_HOST%:%GM_PORT%
+echo   API 文档: http://%GM_HOST%:%GM_PORT%/docs
+echo ========================================
+echo.
+echo 按 Ctrl+C 停止服务
+echo.
+
+REM 启动 FastAPI 服务器
+uvicorn backend.app.main:app --host %GM_HOST% --port %GM_PORT% --reload

start.bat

@@ -0,0 +1,46 @@
+@echo off
+chcp 65001 >nul
+echo ========================================
+echo   Git Repo Manager - Windows 启动脚本
+echo ========================================
+echo.
+
+REM 检查 .env 文件
+if not exist ".env" (
+    echo [错误] .env 文件不存在！
+    echo.
+    echo 请先复制 .env.example 到 .env 并配置密钥:
+    echo   copy .env.example .env
+    echo.
+    pause
+    exit /b 1
+)
+
+echo [1/5] 检查 .env 文件... ✓
+echo.
+
+REM 检查数据库
+if not exist "data\git_manager.db" (
+    echo [2/5] 数据库不存在，正在初始化...
+    python -m backend.init_db
+    if errorlevel 1 (
+        echo [错误] 数据库初始化失败！
+        pause
+        exit /b 1
+    )
+) else (
+    echo [2/5] 数据库已存在... ✓
+)
+echo.
+
+REM 启动后端服务
+echo [3/5] 启动后端服务...
+echo.
+echo 后端地址: http://%GM_HOST%:%GM_PORT%
+echo API 文档: http://%GM_HOST%:%GM_PORT%/docs
+echo.
+echo 按 Ctrl+C 停止服务
+echo ========================================
+echo.
+
+uvicorn backend.app.main:app --host %GM_HOST% --port %GM_PORT% --reload