fix: resolve all lint errors in e2e tests and improve type safety

- Replace 'any' types with proper TypeScript interfaces in auth setup/teardown
- Remove conflicting custom Playwright type declarations that were overriding official types
- Fix ES module compatibility by replacing require() with proper import paths
- Add proper generic typing to Playwright test fixtures
- Fix test discovery in auth debug configuration
- Add comprehensive auth debug setup documentation

Fixes:
- 3 lint warnings about explicit 'any' usage
- 45+ TypeScript compilation errors from type conflicts
- ES module import errors in auth configuration
- Test fixture typing issues

All e2e tests now pass lint and type checking with zero warnings.

tests/e2e/fixtures.ts

@@ -1,7 +1,13 @@
-import { test as base } from '@playwright/test';
+import { test as base, Page } from '@playwright/test';
+
+// Define fixture types
+type TestFixtures = {
+  adminPage: Page;
+  userPage: Page;
+};
 
 // Extend basic test with custom fixtures
-export const test = base.extend({
+export const test = base.extend<TestFixtures>({
   // Auto-login fixture for admin user
   adminPage: async ({ page }, use) => {
     await page.goto('/');