style: cargo fmt --workspace (whitespace/wrapping only, no semantic change)

Whole-workspace rustfmt pass picked up while iterating on Mamba GPU
backward work. Verified formatting-only via diff sampling; no logic
changed.

Co-Authored-By: Claude Sonnet 5 <[email protected]>

crates/training/rtx-compress/src/pruning/unstructured_pruning/mod.rs

@@ -26,8 +26,8 @@ pub use types::{
 
 #[cfg(test)]
 mod tests {
-    use super::*;
     use super::movement::{MovementPruner, MovementPruningConfig};
+    use super::*;
     use rtx_tensor::{Device, Tensor};
 
     #[test]
@@ -140,7 +140,10 @@ mod tests {
         let pruned_values = pruned.to_vec().unwrap();
 
         // With 50% sparsity, 2 of 4 values should be zeroed
-        let zero_count = pruned_values.iter().filter(|&&x: &&f32| x.abs() < 1e-8).count();
+        let zero_count = pruned_values
+            .iter()
+            .filter(|&&x: &&f32| x.abs() < 1e-8)
+            .count();
         assert_eq!(zero_count, 2);
 
         // Mask should be stored