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/playwright.auth.config.ts

@@ -5,8 +5,8 @@ import { defineConfig, devices } from '@playwright/test';
  * Optimized for debugging auth flows with extended timeouts and detailed reporting
  */
 export default defineConfig({
-  testDir: './tests/e2e',
-  testMatch: '**/auth-debug.spec.ts',
+  testDir: './',
+  testMatch: 'tests/e2e/auth-debug.spec.ts',
 
   /* Run tests in files in parallel */
   fullyParallel: false, // Auth tests should run sequentially to avoid conflicts
@@ -111,8 +111,8 @@ export default defineConfig({
   ],
 
   /* Global setup and teardown */
-  globalSetup: require.resolve('./auth-debug-setup.ts'),
-  globalTeardown: require.resolve('./auth-debug-teardown.ts'),
+  globalSetup: './auth-debug-setup.ts',
+  globalTeardown: './auth-debug-teardown.ts',
 
   /* Test timeout for auth operations */
   timeout: 60000, // 1 minute per test