style(simulation): gate bounce — cargo fmt

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

server/src/atlas/layer_proxy.rs

@@ -257,7 +257,8 @@ impl WindowGranularity {
 /// exists). A future coarser-than-region rung is added by widening this
 /// function's match AND [`WindowGranularity`]'s variant list together.
 fn resolve_window_granularity_v2(req: &AtlasLayerRequest) -> WindowGranularity {
-    req.window_granularity_v2.unwrap_or(WindowGranularity::District)
+    req.window_granularity_v2
+        .unwrap_or(WindowGranularity::District)
 }
 
 /// Clamp `window_n` against BOTH the existing per-axis cap