Initial commit: 浼佷笟寰俊 AI 鏈哄櫒浜哄姪鐞?MVP

Co-authored-by: Cursor <cursoragent@cursor.com>

.env.example

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+# ============ Backend ============
+API_HOST=0.0.0.0
+API_PORT=8000
+
+# Database (PostgreSQL)
+DATABASE_URL=postgresql+asyncpg://wecom:wecom_secret@db:5432/wecom_ai
+DATABASE_URL_SYNC=postgresql://wecom:wecom_secret@db:5432/wecom_ai
+
+# JWT (admin login)
+JWT_SECRET=your-jwt-secret-change-in-production
+JWT_ALGORITHM=HS256
+JWT_EXPIRE_MINUTES=60
+
+# Seed 脚本用（可选，默认 admin / admin）
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=admin
+
+# WeCom (占位，后续阶段使用)
+WECOM_CORP_ID=
+WECOM_AGENT_ID=
+WECOM_SECRET=
+WECOM_TOKEN=
+WECOM_ENCODING_AES_KEY=
+WECOM_API_BASE=https://qyapi.weixin.qq.com
+WECOM_API_TIMEOUT=10
+WECOM_API_RETRIES=2
+
+# Log
+LOG_LEVEL=INFO
+LOG_JSON=true
+
+# ============ Admin (Next.js) ============
+NEXT_PUBLIC_API_BASE=http://localhost:8000