feat: add camera zoom dial

[gooddev97]

Summary

• Add a public CameraZoomDial and CameraZoomStop API with controlled and uncontrolled zoom and expansion state.
• Add a logarithmic camera-style wheel, compact zoom stops, touch-and-hold drag interaction, snapping, accessible actions, example usage, and public documentation.
• Normalize ranges, steps, and custom stops consistently, preserve hard endpoints, and cover the camera zoom math with regression tests.

Verification

• bun run lint
• bun run typecheck
• bun run test (38 tests pass)
• bun run build
• bun run pack:check
• Real-device release-build feel check when gesture or animation behavior changed

Additional verification: 100,000 randomized range/format/stop-normalization invariants passed.

Compatibility

• Platform(s): iOS and Android
• React Native version: 0.86.3 in the example app; public peer range >=0.81.0 <0.87
• Expo version or bare React Native: Expo SDK 57
• Dial Slider/Reanimated/Worklets/Gesture Handler/SVG/Linear Gradient versions: 0.1.0 / 4.5.1 / 0.10.1 / 2.32.x / 15.15.4 / 57.0.1

Contributor checklist

• I added or updated regression tests for behavior changes and bug fixes.
• I updated public API documentation and examples where needed.
• I kept generated lib output out of the commit.
• I did not include secrets, credentials, or private user data.
• No breaking change or migration is required.

[ngocdevv]

Approved after successful automated verification.