Fix throttle test isolation to prevent cache bleed-through to subsequent tests

Co-authored-by: delicatacurtis <247246500+delicatacurtis@users.noreply.github.com>

Author: Copilot

tests/Feature/SearchTest.php

@@ -196,5 +196,8 @@
         }
 
         $response->assertStatus(429);
+
+        // Clear rate limiter cache to avoid affecting subsequent tests
+        \Illuminate\Support\Facades\Cache::flush();
     });
 });