Run clippy fix

src/bin/diagnose_embeddings.rs

@@ -36,7 +36,7 @@ struct EmbeddingRow {
 }
 
 fn deserialize_embedding(bytes: &[u8]) -> Result<Vec<f32>> {
-    if bytes.len() % 4 != 0 {
+    if !bytes.len().is_multiple_of(4) {
         return Err(anyhow::anyhow!("Invalid embedding byte length"));
     }