Privacy Flip v2.1.2

• Fixed critical race condition in camera/microphone disabling during screen lock
• Added stabilization delay to prevent keyguard timing issues
• Improved Bluetooth connection detection with multiple fallback methods
• Enhanced "only if unused" reliability for Bluetooth headphones
• Added Samsung NFC payment override detection and opt-in auto-retry
• Added experimental Accessibility Service for side button lock support
• Removed app filtering - users can now exempt ANY app including system apps
• Improved cross-device compatibility for privacy features
• Added comprehensive logging for debugging (enable Debug Logs in settings)