refactor(simulation): apply rustfmt formatting

Formatting-only changes across server source and test files.
No logic changes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/bridge/tcp.rs

@@ -46,9 +46,9 @@ impl TcpBridge {
 
         // Set non-blocking so receive_inputs doesn't stall the game loop.
         // read_framed handles WouldBlock by returning Ok(None).
-        stream.set_nonblocking(true).map_err(|e| {
-            BridgeError::Transport(format!("failed to set non-blocking: {}", e))
-        })?;
+        stream
+            .set_nonblocking(true)
+            .map_err(|e| BridgeError::Transport(format!("failed to set non-blocking: {}", e)))?;
 
         // Clone stream for reader and writer
         let reader_stream = stream.try_clone().map_err(|e| {
@@ -81,9 +81,9 @@ impl TcpBridge {
             local_addr
         );
 
-        stream.set_nonblocking(true).map_err(|e| {
-            BridgeError::Transport(format!("failed to set non-blocking: {}", e))
-        })?;
+        stream
+            .set_nonblocking(true)
+            .map_err(|e| BridgeError::Transport(format!("failed to set non-blocking: {}", e)))?;
 
         let reader_stream = stream.try_clone().map_err(|e| {
             BridgeError::Transport(format!("failed to clone stream for reader: {}", e))