ci: 简化 mobile 流水线为 frozen-lockfile，并更新设计文档

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/superpowers/specs/2026-10-24-drone-tag-package-design.md

@@ -43,8 +43,8 @@
    源文件：`backend/ruoyi-admin/target/ruoyi-admin.jar` → `backend-<tag>.jar`
 
 2. **mobile**（`node:20-bookworm` + corepack/pnpm）  
-   CI 先移走无效 `pnpm-workspace.yaml`，再  
-   `pnpm install --no-frozen-lockfile`（`pnpm-lock.yaml` 被 gitignore）→ `pnpm run build`（H5）  
+   `pnpm install --frozen-lockfile`（仓库纳入 `mobile/pnpm-lock.yaml`；无效 `pnpm-workspace.yaml` 已删除）  
+   → `pnpm run build`（H5）；CI 设置 `PUPPETEER_SKIP_DOWNLOAD=1`  
    打包 `mobile/dist/build/h5` → `mobile-h5-<tag>.tar.gz`
 
 ## Maven 公共缓存