Add Docker deployment and CI/CD configuration

- Add Dockerfile for multi-stage build
- Add docker-compose.yml for easy deployment
- Add Gitea Actions CI/CD workflow
- Add deployment script (deploy.sh)
- Add nginx and supervisord configuration
- Add deployment documentation

Deployment target: 192.168.9.149:8080

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

.gitea/workflows/deploy.yml

@@ -0,0 +1,46 @@
+name: Deploy to Production
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Deploy to server
+        uses: appleboy/ssh-action@v1.0.0
+        with:
+          host: 192.168.9.149
+          username: atai
+          password: wengewudi666808
+          port: 22
+          script: |
+            cd /home/atai/kt-financial-system
+
+            # 如果目录不存在，克隆仓库
+            if [ ! -d ".git" ]; then
+              cd /home/atai
+              git clone https://gitea.ktyun.cc/chenjiangjiang/kt-financial-system.git
+              cd kt-financial-system
+            fi
+
+            # 拉取最新代码
+            git pull origin main
+
+            # 停止并删除旧容器
+            docker-compose down
+
+            # 构建并启动新容器
+            docker-compose up -d --build
+
+            # 清理旧镜像
+            docker image prune -f
+
+            # 显示容器状态
+            docker-compose ps