fix(timing): Decouple test_demo graphics loop from audio clock

This commit resolves choppy graphics in  by decoupling its rendering loop from the audio playback clock. The graphics loop now correctly uses the platform's independent clock () for frame progression, while still utilizing audio time for synchronization cues like beat calculations and peak detection.

Key changes include:
- Moved  declaration to be globally accessible.
- Declared  locally within the main loop.
- Corrected scope for  in debug output.
- Updated time variables and logic to use  for graphics and  for audio events.
- Adjusted debug output to clearly distinguish between graphics and audio time sources.

0 files changed, 0 insertions, 0 deletions