fix(admin): stabilize editor sidebar layout

[khoinguyenpham04]

What does this PR do?

Fixes vertical alignment throughout the content editor sidebar. Drag handles now share a centerline with both standard section headings and collapsible Outline/Revisions headers.

Also prevents the Meta Description textarea from shifting and remounting after its first character by keeping the character counter outside Kumo's conditional field wrapper.

Related issue: none.

Type of change

• Bug fix
• Feature (requires maintainer-approved Discussion)
• Refactor (no behavior change)
• Translation
• Documentation
• Performance improvement
• Tests
• Chore (dependencies, CI, tooling)

Checklist

• I have read CONTRIBUTING.md
• pnpm typecheck passes — currently fails in unchanged origin/main code at packages/core/src/database/repositories/content.ts:1625 because ContentRepository.restampEntryPivot does not exist
• pnpm lint passes
• pnpm test passes (or targeted tests for my change)
• pnpm format has been run
• I have added/updated tests for my changes (if applicable)
• User-visible strings in the admin UI are wrapped for translation (if applicable). Do not include messages.po changes except in translation PRs — a workflow extracts catalogs on merge to main.
• I have added a changeset (if this PR changes a published package)
• New features link to an approved Discussion: N/A — this is a bug fix

AI-generated code disclosure

• This PR includes AI-generated code — model/tool: OpenAI Codex (GPT-5) with a GPT-5.6 Terra second-opinion review

Screenshots / test output

• pnpm lint: passed with zero diagnostics
• Targeted admin browser tests: 17/17 passed (SeoPanel and SortableContentSettingsSections)
• Live browser verification: Publish, Ownership, Bylines, Taxonomies, SEO, Outline, and Revisions all measured a 0px handle/title centerline delta in LTR and RTL
• Meta Description live verification: the empty and typed states retained the same Y position, 8px label gap, and DOM node
• Alignment E2E tests are included, but local Playwright setup fails before test execution because /_emdash/api/setup/dev-bypass?token=1 returns the existing DEV_BYPASS_ERROR
• pnpm typecheck reaches the unchanged origin/main failure documented above; admin package typechecking passes

---

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_{Tracks fix/editor-right-sidebar. Updated automatically when the playground redeploys.}

[changeset-bot]

🦋 Changeset detected

Latest commit: 2552ba0

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 17 packages

Name	Type
@emdash-cms/admin	Patch
emdash	Patch
@emdash-cms/cloudflare	Patch
@emdash-cms/sandbox-workerd	Patch
@emdash-cms/plugin-mcp-smoke	Patch
@emdash-cms/fixture-perf-site	Patch
@emdash-cms/perf-demo-site	Patch
@emdash-cms/cache-demo-site	Patch
@emdash-cms/do-demo-site	Patch
@emdash-cms/do-solo-demo-site	Patch
@emdash-cms/auth	Patch
@emdash-cms/blocks	Patch
@emdash-cms/gutenberg-to-portable-text	Patch
@emdash-cms/x402	Patch
create-emdash	Patch
@emdash-cms/auth-atproto	Patch
@emdash-cms/plugin-embeds	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

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commit: 2552ba0

[emdashbot]

This PR fixes two tightly-scoped admin UI layout bugs: drag-handle vertical alignment for collapsible vs. standard sidebar sections, and a meta-description textarea remount/shift caused by Kumo's conditional field description. Both changes are the right shape for the problem, stay inside the admin package, and are accompanied by tests (unit remount test + E2E alignment assertions). I checked i18n wrapping, Tailwind logical properties, changeset hygiene, and scope discipline; the diff is clean on all of those.

I have one non-blocking suggestion: the three new changesets introduce two nearly identical alignment bullets for the same @emdash-cms/admin patch release. Per AGENTS.md, changesets are user-facing release notes and "one sentence is often enough"; consolidating the two alignment changesets into one would make the release notes clearer. The SEO counter changeset should remain separate.

I did not run the test suite or linter (static review only); I took the PR's test/lint/typecheck claims as unverified context and found no static reason to doubt them.

[emdashbot]

[suggestion] This changeset and .changeset/align-editor-sidebar-handles.md describe the same user-facing alignment fix for @emdash-cms/admin and will appear as two nearly identical bullets in the same patch release notes. AGENTS.md treats changesets as release notes users read and says "one sentence is often enough." Consider consolidating them into a single changeset (e.g. Fixes vertical alignment of editor sidebar drag handles with both standard and collapsible section headings.) and keeping stabilize-seo-description-layout.md separate.