refactor(setup): consolidate prettier config and streamline CI

- Replace scattered .prettierignore files with a single root config
- Add scripts/ci.js to orchestrate lint, format, typecheck, commitlint, and build
- Simplify ci.yml to use ci.js and npm ci
- Apply prettier formatting to docs, locales, and HTML files

docs/README-zh.md

@@ -106,4 +106,3 @@ this project possible.
 ---
 
 **⭐ 如果觉得 PageAgent 有用或有趣，请给项目点个星！**
-