feat: refine admin forms, attendance and finance workflows

Squash merge PR #23.

Included changes:
- complete occupancy check-in required fields/default payload
- improve responsive admin management pages
- fix attendance edge cases and attendance period config
- refine wallet/finance-related workflow handling

Checks:
- npm run typecheck -w apps/admin
- npm run typecheck -w apps/server

apps/admin/src/pages/AiConfig/helpers.integration.test.ts

@@ -17,11 +17,7 @@ describe('AiConfig helpers', () => {
     });
 
     it('swaps when current baseUrl matches previous provider default', () => {
-      const result = shouldAutoSwapBaseUrl(
-        'DEEPSEEK',
-        'https://api.openai.com/v1',
-        'OPENAI',
-      );
+      const result = shouldAutoSwapBaseUrl('DEEPSEEK', 'https://api.openai.com/v1', 'OPENAI');
       expect(result.shouldSwap).toBe(true);
       expect(result.baseUrl).toBe(PROVIDER_DEFAULTS.DEEPSEEK);
     });
@@ -32,11 +28,7 @@ describe('AiConfig helpers', () => {
     });
 
     it('keeps custom baseUrl unchanged', () => {
-      const result = shouldAutoSwapBaseUrl(
-        'OPENAI',
-        'https://custom.api.com/v1',
-        'DEEPSEEK',
-      );
+      const result = shouldAutoSwapBaseUrl('OPENAI', 'https://custom.api.com/v1', 'DEEPSEEK');
       expect(result.shouldSwap).toBe(false);
       expect(result.baseUrl).toBe('https://custom.api.com/v1');
     });