fix(field): vertically center required/optional indicator in FieldLabel

[athz]

Summary

The optional/required indicator (∙ Required / ∙ Optional) in FieldLabel rendered visually high relative to the label text — most visible on Typeahead's required variant.

Root cause: the label and optionalRequired styles never set an explicit lineHeight, so both fell back to line-height: normal (~1.2). That produced mismatched line boxes (~16.8px for the 14px label vs ~14.4px for the 12px indicator). With alignItems: center, the smaller indicator centered within its shorter box and ended up off-center.

Fix: apply the intended leading tokens (--text-label-leading and --text-supporting-leading, both resolve to 20px) so the two flex children get equal-height line boxes and center correctly.

Since FieldLabel is shared, this fixes the indicator alignment across Field, Typeahead, CheckboxInput, and Switch.

Testing

• vitest run packages/core/src/Field — 40/40 pass
• pnpm -F @astryxdesign/core typecheck — clean
• eslint on the changed file — clean
• check:sync / check:changesets — clean (changeset included)
• Visually confirmed centered.

Before

After

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Project	Deployment	Actions	Updated (UTC)
astryx	Ready	Preview, Comment	Jul 2, 2026 4:11am

[cixzhang]

Nice thank you for the fix!