feat: Add --seek command line option for fast-forward debugging

This feature allows developers to jump to a specific time in the demo sequence (e.g., './demo64k --seek 10.5'). It simulates the game logic, audio state (rendering silent buffers), and visual physics (compute shaders) from t=0 up to the target time before starting real-time playback. Audio initialization is refactored to separate device init and start.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/audio/audio.h b/src/audio/audio.h
index dd43d97..67c83c2 100644
--- a/src/audio/audio.h
+++ b/src/audio/audio.h
@@ -5,5 +5,7 @@
 #pragma once
 
 void audio_init();
+void audio_start(); // Starts the audio device callback
+void audio_render_silent(float duration_sec); // Fast-forwards audio state
 void audio_update();
 void audio_shutdown();