fix(bridge): improve accept error reporting with address context

Replace expect() with unwrap_or_else that logs the bind address
and error via tracing before exiting.

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

server/src/main.rs

@@ -27,7 +27,10 @@ fn main() {
     tracing::info!("The Settled Reach - Simulation Server starting");
     tracing::info!("Waiting for client connection on {}", addr);
 
-    let bridge = TcpBridge::accept(&addr).expect("Failed to accept client connection");
+    let bridge = TcpBridge::accept(&addr).unwrap_or_else(|e| {
+        tracing::error!("Failed to accept client connection on {}: {}", addr, e);
+        std::process::exit(1);
+    });
     tracing::info!("Client connected, initializing simulation");
 
     // Create the bevy App and add plugins