[Android] Correct Rotation handler

[m-bert]

Description

Follow up for #4078

I've noticed that when Rotation does not activate, but pointers are released, onFinalize is called with true. This happens because we try to move it to END state, but our internal logic does not send onDeactivate.

Code in onHandle that I removed was effectively dead, as ACTION_UP was handled in rotation detector - the only possible branch was else statement which fails handler if only one pointer was present.

Test plan

Tested on Transformations example and the following code:

import { StyleSheet, View } from 'react-native';
import {
  GestureDetector,
  GestureHandlerRootView,
  usePinchGesture,
  useRotationGesture,
} from 'react-native-gesture-handler';

export default function App() {
  const g = useRotationGesture({
    onBegin: () => console.log('onBegin'),
    onActivate: () => console.log('onActivate'),
    onUpdate: (e) => console.log('onUpdate', e.rotation),
    onDeactivate: () => console.log('onDeactivate'),
    onFinalize: (_, s) => console.log('onFinalize', s),
  });

  return (
    <GestureHandlerRootView style={styles.container}>
      <GestureDetector gesture={g}>
        <View style={styles.box} />
      </GestureDetector>
    </GestureHandlerRootView>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'center',
  },
  box: {
    width: 200,
    height: 200,
    backgroundColor: 'blue',
    borderRadius: 12,
  },
});

[Copilot]

Pull request overview

Fixes Android RotationGestureHandler state transitions so onFinalize receives the correct success flag when rotation never activates but pointers are released (aligning behavior with the intended gesture lifecycle).

Changes:

• Update onRotationEnd to end() only when the handler is STATE_ACTIVE, otherwise fail().
• Remove dead ACTION_UP handling from onHandle and keep a targeted fail path for single-pointer ACTION_UP while still in STATE_BEGAN.

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