fix: avoid unsafe iOS keyboard dismissal

[thymikee]

Summary

Closes #952.

• Removes the iOS keyboard dismissal swipe/coordinate fallbacks that could type into focused fields on iOS 26.
• Keeps dismissal limited to safe native controls and updates the unsupported-operation copy/docs/help to match.

The dismiss-control search intentionally checks matching buttons beyond app.toolbars.buttons because iOS 26 may expose keyboard-accessory Done controls outside a UIToolbar. It remains bounded by exact safe labels and keyboard-accessory geometry, so it can tap a nearby dismiss control without falling back to input-mutating gestures or raw coordinates.

Touched files: 8. Scope stayed within iOS runner keyboard behavior plus related help/docs/tests.

Validation

• Verified in Safari on iPhone 17 Pro simulator: keyboard dismiss no longer appended TV to abc; it failed closed when no safe control was available.
• Verified in examples/test-app Checkout form on iPhone 17 Pro simulator: field stayed Final952 after keyboard dismiss returned UNSUPPORTED_OPERATION.
• Verified tvOS simulator path still reports keyboard unsupported.
• pnpm build
• pnpm build:xcuitest
• pnpm build:xcuitest:tvos
• pnpm exec vitest run src/utils/tests/args.test.ts src/commands/system/index.test.ts src/core/tests/dispatch-keyboard.test.ts src/core/tests/capabilities.test.ts
• pnpm exec vitest run src/platforms/ios/tests/runner-client.test.ts
• pnpm format
• pnpm check:quick

[github-actions]

PR Preview Action v1.8.1
Preview removed because the pull request was closed.
2026-06-30 12:08 UTC

[github-actions]

Size Report

Metric	Base	Current	Diff
JS raw	1.4 MB	1.4 MB	-53 B
JS gzip	456.1 kB	456.1 kB	-18 B
npm tarball	557.9 kB	557.8 kB	-144 B
npm unpacked	2.0 MB	2.0 MB	-1.1 kB

Startup median (7 runs, lower is better):

Scenario	Base	Current	Diff
CLI --version	27.5 ms	27.9 ms	+0.4 ms
CLI --help	48.2 ms	57.8 ms	+9.5 ms

Top changed chunks:

Chunk	Raw diff	Gzip diff
dist/src/cli-help.js	-80 B	-25 B
dist/src/2948.js	+27 B	+7 B

[thymikee]

Reviewed against #952 and the iOS runner path. This removes the unsafe dismiss swipe/coordinate fallback that could type into focused fields, keeps dismissal limited to safe native controls, and preserves an explicit UNSUPPORTED_OPERATION result when the keyboard stays visible. Docs/help now steer agents away from manual Done/back fallbacks unless intentional, and checks are green. No remaining blockers; marking ready-for-human.