Refactor: delegate haptics to Compose's HapticFeedback instead of direct Vibrator calls

[Ericgacoki]

Summary

Player haptics are currently produced by calling the platform Vibrator directly from MediaControllerViewModel (via VibrationEffect). We should delegate to Compose's native haptics — LocalHapticFeedback / HapticFeedback.performHapticFeedback(HapticFeedbackType.*) — instead of hand-rolling vibration timings/amplitudes.

Why

• Respects the user's system haptic settings and device-specific haptic tuning (direct Vibrator calls bypass these).
• Platform-consistent feedback; no custom VibrationEffect timings/amplitudes to maintain.
• Removes the Vibrator / VibrationEffect plumbing from the ViewModel and keeps haptics in the UI layer where they belong.

Current state (MediaControllerViewModel)

• activateHapticResponse() — double-pulse waveform (queue add / play-next)
• softHaptic() — soft tick on committed player actions (play/pause, next/prev, seek-release, shuffle, repeat, favorite, seek-to-queue-item)
• destructiveHaptic() — pronounced double-buzz on queue clear (drag-to-dismiss)

A few UI spots already use Compose haptics correctly (e.g. the long-press handler in AnimatedPlayerSheet).

Proposed approach

• Map each action to an appropriate HapticFeedbackType (e.g. ContextClick/SegmentTick for soft actions, Reject/Confirm for the destructive clear, LongPress for long-press).
• The VM can't perform Compose haptics directly, so emit haptic events from the VM as a Flow/Channel and collect them in the player composable to call performHapticFeedback(...) — keeping a single central trigger while delegating the actual feedback to Compose.
• Remove the three custom Vibrator-based methods (and the Vibrator field / VIBRATE usage) once migrated.

Notes

• Needs a recent enough Compose Foundation for the richer HapticFeedbackType set (Confirm/Reject/etc.) — confirm the version supports the types we pick.
• Context: the custom vibration approach was introduced/extended during the player-improvements work; this issue tracks consolidating it onto the Compose-native path.

[Ericgacoki]

Hehee, thank you Agent Claude 😎