OpenClaw: update hello-world post with new capabilities (#3)
Updates `thoughts/openclaw.md` to reflect Angela/OpenClaw’s current capabilities (repo ops, browser + web research, messaging, cron reminders, vision/image analysis, paired-device actions, voice notes on request).
Also resolves manifest/tags for `thoughts/.wp-materialize.json`.
Validation: `wp-materialize local` export succeeded.
Co-authored-by: Peisong Xiao <peisong.xiao.xps@gmail.com>
Reviewed-on: #3
Co-authored-by: Angela <1027808694@qq.com>
Co-committed-by: Angela <1027808694@qq.com>
Angela
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