添加Docker自包含部署分支

- 新增 Seg_Server_Docker 自包含部署内容，包含前后端、FastAPI、Celery、PostgreSQL、Redis、MinIO、演示视频和 DICOM 数据。

- 保留 demo 数据以支持恢复演示出厂设置，排除 SAM 2.1 .pt 权重并在 README 中补充下载命令。

- 补充 GPU 部署、backend/worker 镜像复用、frpc/frps + NPM 公网域名反代部署说明。

- 在 .env/.env.example 中用 # XXXX 标注局域网和公网域名部署需要修改的配置项。

- 添加部署分支 .gitignore，忽略本地模型权重、构建产物、缓存和日志。

package.json

@@ -0,0 +1,50 @@
+{
+  "name": "react-example",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "tsx server.ts",
+    "build": "vite build",
+    "preview": "vite preview",
+    "start": "node server.ts",
+    "clean": "rm -rf dist",
+    "lint": "tsc --noEmit",
+    "test": "vitest",
+    "test:run": "vitest run"
+  },
+  "dependencies": {
+    "@google/genai": "^1.29.0",
+    "@tailwindcss/vite": "^4.1.14",
+    "@vitejs/plugin-react": "^5.0.4",
+    "axios": "^1.15.2",
+    "clsx": "^2.1.1",
+    "dotenv": "^17.2.3",
+    "express": "^4.21.2",
+    "konva": "^10.2.5",
+    "lucide-react": "^0.546.0",
+    "motion": "^12.23.24",
+    "polygon-clipping": "^0.15.7",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "react-konva": "^19.2.3",
+    "tailwind-merge": "^3.5.0",
+    "use-image": "^1.1.4",
+    "vite": "^6.2.0",
+    "zustand": "^5.0.12"
+  },
+  "devDependencies": {
+    "@testing-library/jest-dom": "^6.9.1",
+    "@testing-library/react": "^16.3.2",
+    "@testing-library/user-event": "^14.6.1",
+    "@types/express": "^4.17.21",
+    "@types/node": "^22.14.0",
+    "autoprefixer": "^10.4.21",
+    "jsdom": "^29.1.1",
+    "tailwindcss": "^4.1.14",
+    "tsx": "^4.21.0",
+    "typescript": "~5.8.2",
+    "vite": "^6.2.0",
+    "vitest": "^4.1.5"
+  }
+}