feat(Switch): add size prop scale (sm / md) matching boolean control vertical rhythm (#4230)

[HelloOjasMutreja]

Summary

Closes #4230 (Switch: add a size prop matching the Checkbox/Radio size scale).

This PR adds a size prop ('sm' / 'md', default 'md') to Switch matching the size scale used by CheckboxInput and RadioList:

• sm: 34px track width, 20px track height, 12px thumb (off) / 16px thumb (on). Matches 20px sm checkbox/radio control height.
• md: 40px track width, 24px track height, 16px thumb (off) / 20px thumb (on). Matches 24px md checkbox/radio control height (default, non-breaking).

Commit Breakdown

This PR contains 3 logical commits:

1. feat(Switch): add size prop scale (sm / md) to match boolean control vertical rhythm (#4230)
2. docs(Switch): document size prop in Switch.doc.mjs (#4230)
3. test(Switch): add size prop unit tests & changeset (#4230)

Test Plan

• Ran pnpm --filter @astryxdesign/core test Switch.test.tsx (42/42 tests passing).
• Ran pnpm check:repo to verify repository integrity.

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Project	Deployment	Actions	Updated (UTC)
astryx	Ready	Preview, Comment	Jul 25, 2026 8:15am

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PR Analysis Report

Modified Components

Switch

Metric	Before	After	Delta
Bundle Size (ESM)	N/A	N/A	N/A
Lines of Code	N/A	437	-
Complexity	N/A	Very High (43)	-

Bundle Size Summary

Package	Size (ESM)	Size (CJS)	Gzipped
@astryxdesign/core	N/A	4.7KB	0B

Accessibility Audit

Status: No accessibility violations detected.

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