test(events): update list mock chain after removing .select() projection

GET /api/events now does find().sort().lean() (no .select()) since the
handler strips registrations in the map step. The mock chain in
members-only-visibility.test.js still expected .select(), causing all
list tests to throw "lean is not a function".

tests/server/api/events/members-only-visibility.test.js

@@ -5,14 +5,12 @@ import { createMockEvent } from '../../helpers/createMockEvent.js'
 const {
   mockFind,
   mockSort,
-  mockSelect,
   mockLean,
   mockGetOptionalMember,
   mockLoadPublicEvent
 } = vi.hoisted(() => ({
   mockFind: vi.fn(),
   mockSort: vi.fn(),
-  mockSelect: vi.fn(),
   mockLean: vi.fn(),
   mockGetOptionalMember: vi.fn(),
   mockLoadPublicEvent: vi.fn()
@@ -36,8 +34,7 @@ vi.mock('../../../../server/utils/loadEvent.js', () => ({
 
 function setupFindChain(result = []) {
   mockLean.mockResolvedValue(result)
-  mockSelect.mockReturnValue({ lean: mockLean })
-  mockSort.mockReturnValue({ select: mockSelect })
+  mockSort.mockReturnValue({ lean: mockLean })
   mockFind.mockReturnValue({ sort: mockSort })
 }