tests: add Playwright event badge CRUD + interaction tests; add minimal V3 mocks and env helper; update presenter/badge smoke tests to use helpers; convert test locals to snake_case

tests/unit/create_event_badge.spec.ts

@@ -0,0 +1,42 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+
+// Aether test/demo base URL: 'http://demo.localhost:5173'
+// Aether development API: 'https://dev-api.oneskyit.com'
+// Aether test/demo account: '_XY7DXtc9MY' (1) "One Sky IT Demo"
+// Aether test/demo event: 'pjrcghqwert' (1) "Demo One Sky IT Conference"
+
+// Mock the api module used by the ae_events file
+const mockCreateNested = vi.fn();
+vi.mock('$lib/api/api', () => ({ api: { create_nested_obj_v3: mockCreateNested } }));
+
+// Avoid touching IndexedDB caching in this unit test
+vi.mock('$lib/ae_core/core__idb_dexie', () => ({ db_save_ae_obj_li__ae_obj: vi.fn() }));
+
+// Import the function under test after mocks
+import { create_ae_obj__event_badge } from '../../../src/lib/ae_events/ae_events__event_badge';
+
+describe('create_ae_obj__event_badge', () => {
+    beforeEach(() => {
+        mockCreateNested.mockReset();
+    });
+
+    it('calls api.create_nested_obj_v3 with the correct params and returns the result', async () => {
+        const fakeResult = { event_badge_id: 'eb123', full_name: 'Test User' };
+        mockCreateNested.mockResolvedValue(fakeResult);
+
+        const api_cfg = { base_url: 'http://localhost', headers: {} };
+        const event_id = 'evt1';
+        const data_kv = { full_name_override: 'Test User', email: 't@example.com' };
+
+        const result = await create_ae_obj__event_badge({ api_cfg, event_id, data_kv, try_cache: false });
+
+        expect(mockCreateNested).toHaveBeenCalled();
+        const calledWith = mockCreateNested.mock.calls[0][0];
+        expect(calledWith.parent_type).toBe('event');
+        expect(calledWith.parent_id).toBe(event_id);
+        expect(calledWith.child_type).toBe('event_badge');
+        expect(calledWith.fields).toEqual(data_kv);
+
+        expect(result).toEqual(fakeResult);
+    });
+});