feat: add factory sample machines and robot pricing conversations

src/services/apiClient.test.js

@@ -0,0 +1,25 @@
+import { describe, it, expect, vi, afterEach } from 'vitest';
+afterEach(() => {
+  vi.restoreAllMocks();
+  history.replaceState({}, '', '/');
+});
+describe('world asset service', () => {
+  it('resolves a Pages repository directory without inheriting query parameters', async () => {
+    history.replaceState({}, '', '/vending-machine-game/?debug');
+    vi.resetModules();
+    const { apiClient } = await import('./apiClient.js');
+    expect(apiClient.defaults.baseURL).toBe(`${location.origin}/vending-machine-game/`);
+  });
+  it('retains the optional-data fallback and passes cancellation to both requests', async () => {
+    const { apiClient } = await import('./apiClient.js');
+    const { loadWorldFiles } = await import('./worldService.js');
+    const get = vi.spyOn(apiClient, 'get').mockRejectedValue(new Error('offline'));
+    const controller = new AbortController();
+    expect(await loadWorldFiles(controller.signal)).toEqual([null, null]);
+    expect(get).toHaveBeenCalledWith('./data/buildings.bin', {
+      responseType: 'arraybuffer',
+      signal: controller.signal,
+    });
+    expect(get).toHaveBeenCalledWith('./imagery/index.json', { signal: controller.signal });
+  });
+});