Summary

Background

Rstest had API-level mock docs and scattered examples, but no basic guide that explained mocking workflows in one place.

Implementation

• Added new English and Chinese Mocking guide pages under guide/basic.
• Organized module mocking by ESM/CommonJS usage, hoisted and non-hoisted behavior, partial mocks, manual mocks, and module reset APIs.
• Added sidebar entries and linked the relevant runtime API documentation from the new guide.

User Impact

Users now have a task-oriented mocking guide in both languages instead of piecing behavior together from API references and migration docs.

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

Validation was not run locally because this environment does not provide node, npx, or pnpm. This PR is created as a draft for that reason.