- Replace all openclaw-cn commands with openclaw (official)
- Remove OpenClaw-CN community fork links (jiulingyun)
- Remove clawd.org.cn, skillhub.tencent.com references
- Remove clawdbot-ai/awesome-openclaw-skills-zh links
- Update guide.html, llms.txt, skills.html, SkillHub.html, tutorial
- All links now point to U-Claw (u-claw.org) or OpenClaw official
- Add JSON-LD structured data for AI crawlers and search engines
- Add llms.txt for AI agent discovery (product info, commands, skills)
- Add WeChat ID (hecare888) to contact section in help doc
- Add canonical URL and robots meta