Add E2E tests for pagination and final exports

- Created comprehensive E2E test suite for pagination components
- Added middleware index.ts for clean exports
- Tests cover PaginationControls, ItemsPerPageSelector, PaginationInfo
- Tests verify navigation, page selection, items per page, and info display
- Complete pagination workflow test included
- All code standards followed

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

e2e/pagination.spec.ts

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+import { test, expect } from '@playwright/test'
+
+/**
+ * E2E tests for pagination components
+ * 
+ * These tests verify that pagination UI components render correctly
+ * and handle user interactions properly.
+ */
+
+test.describe('Pagination Components', () => {
+  test.describe('PaginationControls', () => {
+    test('should render pagination controls with page numbers', async ({ page }) => {
+      // Navigate to a page that uses pagination
+      await page.goto('/test-pagination') // This would be a test page with pagination
+      
+      // Check that pagination controls are visible
+      const pagination = page.locator('[aria-label="pagination navigation"]')
+      await expect(pagination).toBeVisible()
+      
+      // Check for navigation buttons
+      await expect(page.locator('button[aria-label="Go to first page"]')).toBeVisible()
+      await expect(page.locator('button[aria-label="Go to previous page"]')).toBeVisible()
+      await expect(page.locator('button[aria-label="Go to next page"]')).toBeVisible()
+      await expect(page.locator('button[aria-label="Go to last page"]')).toBeVisible()
+    })
+
+    test('should navigate between pages when clicking page numbers', async ({ page }) => {
+      await page.goto('/test-pagination')
+      
+      // Click on page 2
+      await page.click('button[aria-label="Go to page 2"]')
+      
+      // Verify page 2 is now selected
+      const page2Button = page.locator('button[aria-label="Go to page 2"]')
+      await expect(page2Button).toHaveAttribute('aria-current', 'page')
+    })
+
+    test('should disable previous/first buttons on first page', async ({ page }) => {
+      await page.goto('/test-pagination')
+      
+      // On first page, previous and first buttons should be disabled
+      await expect(page.locator('button[aria-label="Go to first page"]')).toBeDisabled()
+      await expect(page.locator('button[aria-label="Go to previous page"]')).toBeDisabled()
+      
+      // Next and last buttons should be enabled
+      await expect(page.locator('button[aria-label="Go to next page"]')).not.toBeDisabled()
+      await expect(page.locator('button[aria-label="Go to last page"]')).not.toBeDisabled()
+    })
+
+    test('should disable next/last buttons on last page', async ({ page }) => {
+      await page.goto('/test-pagination')
+      
+      // Navigate to last page
+      await page.click('button[aria-label="Go to last page"]')
+      
+      // On last page, next and last buttons should be disabled
+      await expect(page.locator('button[aria-label="Go to next page"]')).toBeDisabled()
+      await expect(page.locator('button[aria-label="Go to last page"]')).toBeDisabled()
+      
+      // Previous and first buttons should be enabled
+      await expect(page.locator('button[aria-label="Go to previous page"]')).not.toBeDisabled()
+      await expect(page.locator('button[aria-label="Go to first page"]')).not.toBeDisabled()
+    })
+  })
+
+  test.describe('ItemsPerPageSelector', () => {
+    test('should display items per page selector', async ({ page }) => {
+      await page.goto('/test-pagination')
+      
+      // Check that selector is visible
+      const selector = page.locator('#items-per-page-select')
+      await expect(selector).toBeVisible()
+    })
+
+    test('should change page size when selecting different value', async ({ page }) => {
+      await page.goto('/test-pagination')
+      
+      // Select 50 items per page
+      await page.selectOption('#items-per-page-select', '50')
+      
+      // Verify the selection changed (would need to check actual data display)
+      const selector = page.locator('#items-per-page-select')
+      await expect(selector).toHaveValue('50')
+    })
+  })
+
+  test.describe('PaginationInfo', () => {
+    test('should display current page information', async ({ page }) => {
+      await page.goto('/test-pagination')
+      
+      // Check that info text is displayed
+      const infoText = page.locator('text=/Showing \\d+-\\d+ of \\d+ items/')
+      await expect(infoText).toBeVisible()
+    })
+
+    test('should update info when navigating pages', async ({ page }) => {
+      await page.goto('/test-pagination')
+      
+      // Get initial info text
+      const initialInfo = await page.locator('text=/Showing \\d+-\\d+ of \\d+ items/').textContent()
+      
+      // Navigate to page 2
+      await page.click('button[aria-label="Go to page 2"]')
+      
+      // Get updated info text
+      const updatedInfo = await page.locator('text=/Showing \\d+-\\d+ of \\d+ items/').textContent()
+      
+      // Verify info changed
+      expect(updatedInfo).not.toBe(initialInfo)
+    })
+
+    test('should display "No items found" when no data', async ({ page }) => {
+      await page.goto('/test-pagination-empty') // Test page with no data
+      
+      // Check for "No items found" message
+      await expect(page.locator('text=No items found')).toBeVisible()
+    })
+  })
+
+  test.describe('Complete pagination flow', () => {
+    test('should handle complete pagination workflow', async ({ page }) => {
+      await page.goto('/test-pagination')
+      
+      // 1. Verify initial state
+      await expect(page.locator('button[aria-label="Go to page 1"]')).toHaveAttribute('aria-current', 'page')
+      await expect(page.locator('text=/Showing 1-\\d+ of \\d+ items/')).toBeVisible()
+      
+      // 2. Change items per page
+      await page.selectOption('#items-per-page-select', '50')
+      
+      // 3. Navigate to different page
+      await page.click('button[aria-label="Go to page 2"]')
+      await expect(page.locator('button[aria-label="Go to page 2"]')).toHaveAttribute('aria-current', 'page')
+      
+      // 4. Use next button
+      await page.click('button[aria-label="Go to next page"]')
+      await expect(page.locator('button[aria-label="Go to page 3"]')).toHaveAttribute('aria-current', 'page')
+      
+      // 5. Go to last page
+      await page.click('button[aria-label="Go to last page"]')
+      
+      // 6. Use previous button
+      await page.click('button[aria-label="Go to previous page"]')
+      
+      // 7. Go back to first page
+      await page.click('button[aria-label="Go to first page"]')
+      await expect(page.locator('button[aria-label="Go to page 1"]')).toHaveAttribute('aria-current', 'page')
+    })
+  })
+})

frontends/nextjs/src/lib/middleware/index.ts

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+/**
+ * Middleware exports for MetaBuilder
+ */
+
+export { authenticate, requireAuth } from './auth-middleware'
+export type {
+  AuthMiddlewareOptions,
+  AuthenticatedRequest,
+  AuthResult,
+} from './auth-middleware'