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/SelfserveOpenApiSpecTest.php

@@ -86,3 +86,25 @@ it('documents in-progress self-serve wash start and machine relay fields', funct
     expect($inProgressPathBlock)->toContain('machine_start_triggered_at:');
     expect($inProgressPathBlock)->toContain('wash_started_at:');
 });
+
+it('documents self-serve machine wash included minutes in config schemas', function (): void {
+    $content = selfserve_openapi_content_or_skip();
+
+    expect($content)->toContain('SelfServeConfigEntry:');
+    expect($content)->toContain('machine_wash_minutes_included');
+    expect($content)->toContain('SelfServeConfig:');
+});
+
+it('documents property gate lane commands and sanitized gate failure responses', function (): void {
+    $content = selfserve_openapi_content_or_skip();
+    $commandPathBlock = selfserve_openapi_path_block_or_fail($content, '/modules/self-serve/lane/command');
+    $gateOpenPathBlock = selfserve_openapi_path_block_or_fail($content, '/modules/self-serve/lane/gate/open');
+
+    expect($commandPathBlock)->toContain('OPEN_PROPERTY_ACCESS_GATE');
+    expect($commandPathBlock)->toContain('OPEN_PROPERTY_EXIT_GATE');
+    expect($commandPathBlock)->toContain('Command execution failed');
+    expect($commandPathBlock)->toContain('Failed to execute command: Failed to open property access gate.');
+
+    expect($gateOpenPathBlock)->toContain('Gate open failed');
+    expect($gateOpenPathBlock)->toContain('Failed to open entrance gate.');
+});