build: 添加 Docker 相关配置文件

添加 Dockerfile、docker-compose.yml 和 .dockerignore 文件，用于容器化部署开发环境

.dockerignore

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+node_modules
+.git
+.gitignore
+.vite
+dist
+*.log
+.env
+.env.local
+.env.*.local
+coverage
+.nyc_output
+.DS_Store
+Thumbs.db

Dockerfile

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+FROM node:20-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+
+RUN npm install
+
+COPY . .
+
+EXPOSE 5173
+
+CMD ["npm", "run", "dev", "--", "--host"]

docker-compose.yml

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+version: '3.8'
+
+services:
+  thinkflow:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: thinkflow-app
+    ports:
+      - "5173:5173"
+    volumes:
+      - .:/app
+      - /app/node_modules
+    environment:
+      - NODE_ENV=development
+    restart: unless-stopped