feat: add the petercat

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官网新增petercat assistant

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Latest commit: eae0bee

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[petercat-assistant]

Walkthrough

This pull request introduces a new feature by adding the petercat assistant to the project configuration. The petercat feature is enabled with a specific token, allowing it to be displayed in the demo page.

Changes

File	Summary
site/.dumirc.ts	Added a new configuration section for petercat with show set to true and a specific token.