feat(adapters): provide detailed availability info and install guidan…

[Harsh3991]

…ce for expo-av/expo-video

Enhanced Error Handling and Availability Info for Expo Video Adapters

Improves error messages and adds installation guidance for expo-av/expo-video dependencies.

Brief Summary of Changes

• Added getAvailabilityInfo() method to all video adapters
• Enhanced error messages with adapter names and install commands
• Stored actual error details from module loading failures
• Added comprehensive test coverage and documentation

What does this PR address?

• New feature
• Bug fix
• Adds more tests

Are tests included?

• Yes

Reviewer, please note:

• Non-breaking change - existing code works without modification
• New optional getAvailabilityInfo() method provides detailed error context
• Error messages now include specific installation commands (e.g., npx expo install expo-av)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I ran the full test suite before pushing the changes and all the tests pass.

Files Changed:

• src/adapters/ExpoAVVideoAdapter.tsx - Enhanced error handling
• src/adapters/ExpoVideoAdapter.tsx - Enhanced error handling
• src/adapters/FallbackVideoAdapter.tsx - Added availability info
• src/adapters/types.ts - Added interface for availability info
• src/adapters/__tests__/ErrorHandling.test.ts - New comprehensive tests
• ENHANCED_ERROR_HANDLING.md - Documentation and examples