docs(changelog): sync [Unreleased] section

[baizixv]

Automatically sync [Unreleased] changelog from tego-standard repository.

Summary by CodeRabbit

• Documentation
  • Added new fixed items and change entries to the unreleased section of the changelog
  • Updated both English and Chinese language versions of the changelog documentation
  • Removed redundant header from changelog file

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

This PR updates both English and Chinese changelog files. The English changelog adds new "Fixed" and "Changed" sections to the Unreleased version and removes a trailing header. The Chinese changelog removes opening and closing section delimiters.

Changes

Cohort / File(s)	Summary
English Changelog Updates docs/en/changelog/changelog.md	Added "Fixed" section with three items and "Changed" section with one item near the top of Unreleased section; removed trailing standalone "# Changelog" header
Chinese Changelog Cleanup docs/zh/changelog/changelog.md	Removed opening and closing "更新日志" section delimiters from top and bottom of file

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

• Changelog entries are straightforward additions and removals with no logic or structural complexity
• Changes are purely cosmetic and documentation-focused

Poem

📝✨ A rabbit hops through changelogs with glee,
Adding fixes, marking changes—crystal clarity!
Chinese headers fade, English notes align,
Each update a carrot in the timeline! 🥕

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch chore/sync-unreleased-changelog-20251117-123802

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 7c021be and c785fce.

📒 Files selected for processing (2)

• docs/en/changelog/changelog.md (1 hunks)
• docs/zh/changelog/changelog.md (0 hunks)

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