chore: sync release-3.27.0 to dev

[zzcr]

PR

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our Commit Message Guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• Other... Please describe:

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

Summary by CodeRabbit

• Bug Fixes

  • Fixed grid column handling for edge cases during traversal.

• Chores

  • Version bumped to v3.27.1.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Caution

Review failed

The pull request is closed.

Walkthrough

The PR updates the changelog for version v3.27.0/v2.27.0 (dated 2025/11/07), increments the grid package version to 3.27.1, and refines tree traversal logic in the useHeader composable to prevent pushing parent nodes when none exist.

Changes

Cohort / File(s)	Summary
Changelog Update examples/sites/demos/pc/webdoc/changelog.md	Version headers bumped from v3.26.0/v2.26.0 to v3.27.0/v2.27.0; date updated from 2025/09/15 to 2025/11/07. Changelog entries reorganized with link format changes from raw URLs to angle-bracket-wrapped format. Contributor information updated.
Grid Package Version packages/vue/src/grid/package.json	Version incremented from 3.27.0 to 3.27.1. No dependency or structural changes.
Grid Composable Logic packages/vue/src/grid/src/composable/useHeader.ts	Tree traversal termination condition tightened: the else branch in traverseTree now executes only when a parent exists (else if (parent)) instead of unconditionally, preventing invalid parent node additions.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

• useHeader.ts: Verify the traversal logic change doesn't break leaf column collection in edge cases where parent is undefined/null
• changelog.md: Skim for consistency in entry formatting and contributor list accuracy (high volume but repetitive changes)
• package.json: Confirm version alignment across packages

Poem

🐰 The changelog hops to a newer time,
3.27 arrives in autumn's prime!
Tree traversals now more precise,
Parents only when they're nice.
Version bumps and paths aligned,
Code improvements, carefully refined!

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch release-3.27.0

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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 e1dcb3d and b4bbb07.

📒 Files selected for processing (3)

• examples/sites/demos/pc/webdoc/changelog.md (1 hunks)
• packages/vue/src/grid/package.json (1 hunks)
• packages/vue/src/grid/src/composable/useHeader.ts (1 hunks)

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