feat: update docs

[dreamhunter2333]

PR Type

documentation

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Description

• Removed redundant step about adding custom domains in Settings -> Triggers.
• Updated the instructions for adding variables in Settings -> Variables.
• Added a detailed list of required variables in Settings -> Variables.
• Reordered steps for better clarity and logical flow.

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Changes walkthrough 📝

	Relevant files
Documentation	worker.md Update and clarify worker setup documentation                        vitepress-docs/docs/zh/guide/ui/worker.md Removed redundant step about adding custom domains in Settings -> Triggers. Updated the instructions for adding variables in Settings -> Variables. Added a detailed list of required variables in Settings -> Variables. Reordered steps for better clarity and logical flow. +24/-13

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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🔒 No security concerns identified

⚡ Recommended focus areas for review Possible Typo The word Trggers in the original text should be corrected to Triggers to maintain consistency and avoid confusion.

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