feat: 小程序连接服务器IP + 同步未提交开发

- miniprogram/config.js: BASE_URL 指向 http://192.227.237.8:3001
- 动作标题中文化(nameZh)，搜索匹配 name/nameZh/nameEn
- 新增计划/收藏/我的 等页面与组件
- 后端 Docker 化(Dockerfile/.dockerignore)与翻译脚本
- .gitignore 补充 .DS_Store

backend/Dockerfile

@@ -0,0 +1,27 @@
+# ---- build stage ----
+FROM node:20-slim AS build
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY . .
+# npm run build => ensure-data (skip, dataset present) + nest build + copy-data
+RUN npm run build
+
+# ---- runtime stage ----
+FROM node:20-slim AS runtime
+ENV NODE_ENV=production \
+    PORT=3000 \
+    CORS_ENABLED=true \
+    MEDIA_BASE_URL=https://cdn.jsdelivr.net/gh/hasaneyldrm/exercises-dataset@main \
+    JWT_SECRET=fitcoach-dev-secret
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci --omit=dev && npm cache clean --force
+COPY --from=build /app/dist ./dist
+
+EXPOSE 3000
+# data-store 是运行时生成的 JSON 库，挂卷持久化
+VOLUME ["/app/data-store"]
+HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
+  CMD node -e "fetch('http://localhost:'+process.env.PORT+'/api/exercises').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"
+CMD ["node", "dist/main.js"]