fix: resolve remaining TypeScript and linting errors

- Fixed unused variables in unit tests (elo.test.ts, permissions.test.ts)
- Fixed unused variables in E2E tests (account-acceptance.test.ts, elo-ratings.test.ts, epic1-auth-registration.test.ts, global.setup.ts)
- Fixed 'any' type usage in EditTournamentForm.test.tsx and auth-simple.test.ts
- Fixed unescaped quotes and apostrophes in React components
- Fixed TypeScript type errors in Navigation.tsx, test-api/page.tsx, and matches/upload/page.tsx
- Fixed missing useEffect dependency in tournaments/[id]/entry/page.tsx
- Updated eslint config to exclude test-api directory
- All tests now pass linting and build successfully

src/__tests__/e2e/account-acceptance.test.ts

@@ -125,7 +125,7 @@ test.describe.serial('Account Lifecycle Acceptance Test', () => {
    * Test 3: Delete test account
    * Uses the authenticated project (admin)
    */
-  test('3. Delete test account', async ({ page }) => {
+  test('3. Delete test account', async () => {
     // For now, we'll delete via direct database access
     // In a real scenario, this would be done via an admin API endpoint
     const user = await prisma.user.findUnique({