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
  • Updated changelog to document upcoming features and fixes scheduled for future release.

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[coderabbitai]

Caution

Review failed

The pull request is closed.

📝 Walkthrough

Walkthrough

This PR updates both English and Chinese changelog documentation by adding new "Unreleased" entries, including a drag tab feature and multiple bug fixes across unified approval logic, number precision, filter parameters, HTTP logging, and PDF download names.

Changes

Cohort / File(s)	Summary
Changelog Documentation docs/en/changelog/changelog.md, docs/zh/changelog/changelog.md	Added new Unreleased section entries documenting drag tab feature and bug fixes (unified approval logic, number precision, filter params, HTTP log, PDF download naming).

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• #188: Both PRs modify the same changelog files with overlapping changes to Unreleased/release sections.
• #196: Both PRs update Unreleased and formatting entries in the same changelog files.
• #186: Both PRs modify changelog files to update Unreleased entries and fix/add sections.

Poem

🐰 Hoppy hops through changelogs bright,
Drag tabs shimmer, fixes take flight,
English and Chinese, side by side,
Release notes grow with bunny pride! ✨

✨ 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-20260130-163054

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