docs(changelog): sync full changelog from tego-standard

[baizixv]

Automatically sync full changelog files from tego-standard repository to ensure consistency. This PR overwrites the changelog files in docs repository with the complete changelog from tego-standard repository.

Summary by CodeRabbit

• Documentation
  • Published v1.6.7 release notes dated February 9, 2026 in changelog documentation.
  • Reorganized and consolidated previously unreleased items into the new release with clearly separated additions and bug fixes sections.
  • Updated all release navigation links and version references across English and Chinese changelog versions to reflect the formal v1.6.7 release.

[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

The pull request promotes entries from the Unreleased section into a formal version 1.6.7 release dated 2026-02-09 and updates corresponding release references. The same restructuring is applied to both English and Chinese changelog files.

Changes

Cohort / File(s)	Summary
Changelog Restructuring docs/en/changelog/changelog.md, docs/zh/changelog/changelog.md	Promotes items from Unreleased section into a new [1.6.7] release dated 2026-02-09, reorganizes entries under "✨ Added" and "🐛 Fixed" subsections, and updates version comparison links and release references.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• docs(changelog): sync full changelog from tego-standard #204: Finalizes and reorganizes the same changelog entries that are being promoted from Unreleased into the 1.6.7 release.
• docs(changelog): sync full changelog from tego-standard #202: Adds a new released version entry (1.6.6) and updates Unreleased comparison links, following the same changelog management pattern.
• docs(changelog): sync full changelog from tego-standard #188: Modifies the same changelog files with analogous restructuring of Unreleased entries into a numbered release section.

Poem

🐰 A rabbit hops through the changelog with glee,
Reorganizing v1.6.7 for all to see!
From "Unreleased" chaos to release so neat,
Both languages aligned, the task complete! 📋✨

✨ 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-full-changelog-20260209-045305

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