fix: cast sample_rate to u64 in calculations

src/command/render.rs

@@ -295,7 +295,7 @@ pub async fn handle(state: State, interaction: Interaction) {
     let sample_rate = state.audio_sample_rate.into();
 
     let total_samples = (duration.whole_seconds() as u64 * sample_rate)
-        + (duration.subsec_microseconds() as u64 * sample_rate / 1_000_000);
+        + (duration.subsec_microseconds() as u64 * sample_rate as u64 / 1_000_000);
 
     let mut composite = vec![0; total_samples as usize];
 
@@ -343,7 +343,7 @@ pub async fn handle(state: State, interaction: Interaction) {
         let progress_by_time = after_start / duration;
 
         let origin = (after_start.whole_seconds() as u64 * sample_rate)
-            + (after_start.subsec_microseconds() as u64 * sample_rate / 1_000_000);
+            + (after_start.subsec_microseconds() as u64 * sample_rate as u64 / 1_000_000);
         let origin = origin as usize;
 
         let progress_by_sample = (origin as f64) / (total_samples as f64);