feat(interface-design): add comprehensive interface design skill documentation and references

- Introduced SKILL.md outlining the principles and processes for effective interface design.
- Added critique.md for evaluating design outputs and ensuring craft over correctness.
- Created example.md to illustrate the application of subtle layering principles in design decisions.
- Developed principles.md detailing core craft principles for consistent design quality.
- Implemented validation.md for memory management and pattern reuse in the design system.
- Established system.md for the Playzer design system, defining direction, domain concepts, and design decisions.
- Added StatusBadge component for displaying booking statuses with appropriate styles and labels.
- Updated skills-lock.json to include the new interface-design skill.

apps/backend/test/complex/invite-complex-user.handler.test.ts

@@ -1,11 +1,9 @@
 import { beforeEach, expect, mock, test } from 'bun:test';
 
-import type { InviteComplexUserResponse } from '@repo/api-contract';
 import { createInviteComplexUserHandler } from '@/modules/complex/handlers/invite-complex-user.handler';
+import type { InviteComplexUserResponse } from '@repo/api-contract';
 
-const inviteComplexUserMock = mock(
-  async () => undefined as unknown as InviteComplexUserResponse
-);
+const inviteComplexUserMock = mock(async () => undefined as unknown as InviteComplexUserResponse);
 
 class MockComplexMembersError extends Error {
   status: 400 | 403 | 404 | 409;