feat: add comprehensive tests for UI components, hooks, and API interactions

- Implement tests for Pagination, StatusBadge, ConfirmDialog, and MobileInput components.
- Add tests for useSubscription, usePaymentConfig, and usePwaInstall hooks.
- Create tests for API requests in the api module, including success and error handling.
- Add utility function tests for formatting and validating Iranian mobile numbers.
- Implement tests for BlogFormPage and BlogsPage to validate form submissions and data fetching.
- Add tests for LoginPage to ensure proper validation and state management.
- Create tests for authStore and uiStore to validate state management and functionality.
- Set up Vitest configuration and testing utilities for consistent testing environment.

assets/admin/pages/BlogFormPage.test.tsx

@@ -0,0 +1,43 @@
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+import { screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
+import { renderWithProviders } from '@/test/utils';
+
+vi.mock('@ckeditor/ckeditor5-react', () => ({ CKEditor: () => null }));
+vi.mock('@ckeditor/ckeditor5-build-classic', () => ({ default: {} }));
+vi.mock('sonner', () => ({ toast: { success: vi.fn(), error: vi.fn() } }));
+vi.mock('@/components/ui/SearchableSelect', () => ({ default: () => null }));
+vi.mock('@/lib/api', () => ({
+    api: { get: vi.fn(), post: vi.fn(), patch: vi.fn(), put: vi.fn(), delete: vi.fn() },
+    ApiError: class extends Error {},
+}));
+
+import { api } from '@/lib/api';
+import BlogFormPage from '@/pages/BlogFormPage';
+
+const post = api.post as ReturnType<typeof vi.fn>;
+
+beforeEach(() => {
+    post.mockReset();
+});
+
+describe('BlogFormPage — اعتبارسنجی zod (حالت ساخت)', () => {
+    it('submit با فیلدهای خالی → خطای عنوان و جلوگیری از فراخوانی API', async () => {
+        renderWithProviders(<BlogFormPage />, { route: '/admin/blogs/new' });
+
+        await userEvent.click(screen.getByRole('button', { name: 'ذخیره' }));
+
+        expect(await screen.findByText('عنوان الزامی است')).toBeInTheDocument();
+        expect(post).not.toHaveBeenCalled();
+    });
+
+    it('عنوان کوتاه‌تر از ۳ کاراکتر هم خطا می‌دهد', async () => {
+        renderWithProviders(<BlogFormPage />, { route: '/admin/blogs/new' });
+
+        await userEvent.type(screen.getByPlaceholderText('عنوان جذاب بنویسید...'), 'اب');
+        await userEvent.click(screen.getByRole('button', { name: 'ذخیره' }));
+
+        expect(await screen.findByText('عنوان الزامی است')).toBeInTheDocument();
+        expect(post).not.toHaveBeenCalled();
+    });
+});