[WIP] Fix bug with ID 40cf72f23045

[Copilot]

• Understand bugfix commit 40cf72f
• Apply audio attributes updates in HapticFeedbackEffect.android.kt (changed USAGE_ASSISTANCE_SONIFICATION to USAGE_GAME)
• Add test sounds button to Settings UI in HistoryAndSettingsTabs.kt
• Wire up onTestSounds callback in NavGraph.kt
• Apply refactoring changes to WorkoutTab.kt (formatReps usage and auto-continue timer)
• Verify all changes match the bugfix intent

Summary of Changes

Audio Attributes Update (HapticFeedbackEffect.android.kt)

• Changed AudioAttributes.USAGE_ASSISTANCE_SONIFICATION to AudioAttributes.USAGE_GAME
• Benefits:
  1. Ties sounds to media volume instead of notification volume
  2. Allows sounds to play through Do Not Disturb mode
  3. Better mixing with music without interrupting playback
• Applied to both SoundPool and MediaPlayer fallback

Test Sounds Button (HistoryAndSettingsTabs.kt + NavGraph.kt)

• Added "Test Sounds" button in Developer Tools section of Settings
• Wired up to viewModel.testSounds() which plays sample workout sounds
• Helps users test audio configuration and volume levels

Minor Refactoring (WorkoutTab.kt)

• Use formatReps() helper function for consistent rep display
• Increased auto-continue countdown from 5 to 10 seconds for better UX

All changes are ready to be merged to main.

Original prompt

I need this bugfix merged to Main: 40cf72f

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