Apply route node limit before waiting for geometry (#114)

Co-Authored-By: Codex <noreply@openai.com>

airdef-mod/src/sim/route.rs

@@ -418,11 +418,11 @@ impl Route {
             }
             // Let pending footprint queries settle before opening a broad, less useful frontier.
             // Otherwise three trucks can saturate the shared world budget without ever moving.
-            if !self.parked.is_empty() { break; }
             if self.expanded >= MAX_NODES {
                 self.settle(now);
                 return;
             }
+            if !self.parked.is_empty() { break; }
         }
         if self.expanded > before {
             self.stuck_since = None;