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>

docker-compose.yml

@@ -0,0 +1,22 @@
+version: '3.8'
+
+services:
+  kt-financial:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: kt-financial-system
+    restart: unless-stopped
+    ports:
+      - "8080:80"
+    environment:
+      - NODE_ENV=production
+      - TZ=Asia/Shanghai
+    volumes:
+      - ./logs:/var/log
+    networks:
+      - kt-network
+
+networks:
+  kt-network:
+    driver: bridge