feat: Add getInstalledAccessibilityServices and getEnabledAccessibilityServices APIs

[taibin]

Summary

Add new AccessibilityInfo APIs to query installed and enabled accessibility services on Android.

• getInstalledAccessibilityServices(): Returns list of all installed accessibility services
• getEnabledAccessibilityServices(): Returns list of currently enabled accessibility services

Each service object contains:

• id: The unique identifier of the accessibility service
• name: The human-readable name of the service

Use Case

This allows developers to tailor their app's UI based on specific accessibility services the user has installed or enabled. For example:

• If TalkBack is enabled, developers might want to disable auto-playing videos to avoid interrupting screen reader announcements
• Apps can provide enhanced accessibility features based on the specific services detected

Changes

• AccessibilityInfoModule.kt: Added getInstalledAccessibilityServices() and getEnabledAccessibilityServices() native methods using Android's AccessibilityManager
• NativeAccessibilityInfo.js: Updated TurboModule spec with new method signatures
• AccessibilityInfo.js: Added JS API with proper platform handling (returns empty array on iOS)
• AccessibilityInfo.d.ts: Added TypeScript type definitions

API Usage

// Get installed accessibility services
const installedServices = await AccessibilityInfo.getInstalledAccessibilityServices();
// [{id: "com.google.android.marvin.talkback", name: "TalkBack"}, ...]

// Get enabled accessibility services  
const enabledServices = await AccessibilityInfo.getEnabledAccessibilityServices();
// [{id: "com.google.android.marvin.talkback", name: "TalkBack"}]

Test Plan

• Flow type check passes
• Android Kotlin compilation passes
• Existing AccessibilityInfo tests pass

Changelog

[ANDROID] [ADDED] - Added getInstalledAccessibilityServices and getEnabledAccessibilityServices APIs to AccessibilityInfo

Closes #30864
Closes #30862

🤖 Generated with Claude Code

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Warning

JavaScript API change detected

This PR commits an update to ReactNativeApi.d.ts, indicating a change to React Native's public JavaScript API.

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• This change will be subject to additional review.

This change was flagged as: POTENTIALLY_BREAKING