Add Bird gate call flow unit tests, self-serve machine wash minutes config, relay sync improvements, and OpenAPI updates. Refactor Bird call handling with terminal status detection and timeout normalization.

services/nginx/app/tests/Unit/Selfserve/SelfserveLanePropertyGateCommandTest.php

@@ -133,6 +133,18 @@ it('wraps low-level gate errors for property access command failures', function
 
     expect(function () use ($lane): void {
         $lane->execute(selfserve_lane_command::OPEN_PROPERTY_ACCESS_GATE, new selfserve_lane_command_arguments());
-    })->toThrow(\RuntimeException::class, 'Failed to open property access gate: simulated gateway timeout');
+    })->toThrow(\RuntimeException::class, 'Failed to open property access gate.');
 });
 
+it('wraps low-level gate errors for property exit command failures', function (): void {
+    $lane = new SelfserveLanePropertyGateHarness();
+    $lane->exitGate = new SelfserveLanePropertyGateFake(
+        existsFlag: true,
+        throwOnOpen: true,
+        throwMessage: 'simulated provider error',
+    );
+
+    expect(function () use ($lane): void {
+        $lane->execute(selfserve_lane_command::OPEN_PROPERTY_EXIT_GATE, new selfserve_lane_command_arguments());
+    })->toThrow(\RuntimeException::class, 'Failed to open property exit gate.');
+});