fix(form): keep Toggle, Checkbox and RadioGroup clickable inside Sheet

[MiniCodeMonkey]

Symptom

Toggle and Checkbox placed inside a Sheet (a Base UI Drawer with
swipe-to-dismiss) silently ignore a mouse click. onCheckedChange never
fires and nothing errors. RadioGroup has the same problem.

Root cause

Switch.Root, Checkbox.Root and Radio.Root render as
<span role="switch"|"checkbox"|"radio">, not a native form element.
Base UI's swipe-to-dismiss gesture only treats
button,a,input,select,textarea,label,[role="button"] as interactive by
default (@base-ui/react/utils/useSwipeDismiss.mjs, DEFAULT_IGNORE_SELECTOR
at line 16). Everything else is fair game for the drag gesture.

A mouse press on one of these spans inside an open Sheet therefore starts
the drawer's swipe gesture instead of the control's own click handling.
DrawerViewport.mjs's pointerdown handling calls setPointerCapture on the
popup element (around line 383 of useSwipeDismiss.mjs, gated by
isSwipeIgnoredTarget in DrawerViewport.mjs), which retargets the
eventual click away from the control before onCheckedChange ever runs.

jsdom has no pointer capture implementation, so none of the existing unit
tests reproduce this -- it only shows up in a real browser.

Base UI's own opt-out is the data-base-ui-swipe-ignore attribute
(internals/constants.mjs; a legacy data-swipe-ignore also exists), which
isSwipeIgnoredTarget checks via target.closest(...).

Fix

• Toggle.tsx: data-base-ui-swipe-ignore on Switch.Root.
• Checkbox.tsx: data-base-ui-swipe-ignore on Checkbox.Root.
• RadioGroup.tsx: data-base-ui-swipe-ignore on each Radio.Root option.

Checked the rest of the package for other non-native role-span controls that
could sit in a Sheet: Select.Trigger and Combobox.Input render a real
<button>/<input> (already covered by Base UI's default ignore list), and
Menu's CheckboxItem/RadioItem popups portal to <body>, outside the
Sheet's own DOM subtree, so they're never a descendant the swipe gesture can
capture regardless of role. No Slider or Tabs component exists in this
package yet.

Each attribute is added as one of the component's own controlled props,
spread after ...rest, keeping the existing rule (see Toggle.tsx's doc
comment): rest props are spread before the component's own controlled props,
so a caller can't silently clobber them.

Tests

• src/form/swipeIgnore.test.tsx (unit, jsdom-safe): asserts the attribute
  renders on Toggle's root, Checkbox's root, and every RadioGroup option.
• playground/tests/sheet.spec.ts: a new Playwright test opens the right
  Sheet (now carrying a Toggle in its body), clicks it, and asserts
  onCheckedChange fired and aria-checked flipped. Verified this test
  fails without the fix (the toggle stays unchecked, the counter stays at
  0) and passes with it.

No changelog file exists in this repo, and past fix PRs (4e25deb,
c08a19b, 60accca) didn't bump package.json -- version bumps happen in
separate release: x.y.z commits -- so this PR doesn't touch the version.
playground/package-lock.json picks up an unrelated pre-existing drift
(root package.json was already at 0.3.1, the lockfile still said
0.3.0), refreshed in its own commit matching the repo's existing
chore(playground): refresh the lockfile pattern.

Test plan

• npm run lint
• npm run typecheck
• npm run build
• npm test (vitest, includes the new unit test)
• cd playground && npx playwright test tests/sheet.spec.ts tests/choice.spec.ts (36 passed, includes the new browser test)
• Confirmed the new Playwright test fails without the fix and passes with it

https://claude.ai/code/session_01MThGUPSpK3FBPz62WLoVuW