Initial commit: TradeMate 外贸小助手 MVP

项目结构:
- backend/     Python FastAPI 后端
- uni-app/     uni-app跨端前端
- docs/        设计文档
- docker-compose.yml  Docker编排
- nginx/scripts/systemd 运维配置

已完成功能:
- 用户认证 (JWT)
- 智能翻译 + 回复建议
- 营销素材生成
- 客户管理 + 沉默检测
- 报价单管理
- 产品库管理
- 汇率换算
- 推送通知 (uni-push)
- WhatsApp Webhook框架
- Celery定时任务

systemd/tradmate-backend.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=TradeMate Backend API
+After=network.target postgresql.service redis.service
+
+[Service]
+Type=simple
+User=www-data
+Group=www-data
+WorkingDirectory=/opt/trademate/backend
+Environment=PYTHONUNBUFFERED=1
+ExecStart=/usr/bin/python -m uvicorn app.main:app --host 0.0.0.0 --port 8000 --workers 4
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target

systemd/tradmate-celery-beat.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=TradeMate Celery Beat Scheduler
+After=network.target postgresql.service redis.service
+
+[Service]
+Type=simple
+User=www-data
+Group=www-data
+WorkingDirectory=/opt/trademate/backend
+Environment=PYTHONUNBUFFERED=1
+ExecStart=/usr/bin/celery -A app.celery_app beat --loglevel=info
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target

systemd/tradmate-celery.service

@@ -0,0 +1,16 @@
+[Unit]
+Description=TradeMate Celery Worker
+After=network.target postgresql.service redis.service
+
+[Service]
+Type=simple
+User=www-data
+Group=www-data
+WorkingDirectory=/opt/trademate/backend
+Environment=PYTHONUNBUFFERED=1
+ExecStart=/usr/bin/celery -A app.celery_app worker --loglevel=info --concurrency=4
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target