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/components/Navigation.tsx

@@ -11,8 +11,9 @@ export default function Navigation() {
 
   useEffect(() => {
     // Fetch user role from database if session exists
-    if (session?.user?.id) {
-      fetch(`/api/users/${session.user.id}/role`)
+    const userId = (session?.user as { id?: string })?.id
+    if (userId) {
+      fetch(`/api/users/${userId}/role`)
         .then(res => res.json())
         .then(data => setUserRole(data.role))
         .catch(() => setUserRole(null));
@@ -65,7 +66,8 @@ export default function Navigation() {
             ) : session ? (
               <div className="flex items-center space-x-4">
                 <span className="text-gray-700 text-sm font-medium">
-                  {session.user?.name || session.user?.email}
+                  {(session.user as { name?: string; email?: string })?.name || 
+                   (session.user as { name?: string; email?: string })?.email}
                 </span>
                 <button
                   onClick={handleLogout}