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/elo-ratings.test.ts

@@ -6,14 +6,11 @@
 
 import { test, expect } from '@playwright/test';
 import { PrismaClient } from '@prisma/client';
-import { scryptAsync } from '@noble/hashes/scrypt.js';
-import { hex } from '@better-auth/utils/hex';
+import fs from 'fs';
+import path from 'path';
 
 const prisma = new PrismaClient();
 
-// Polyfill crypto for Node.js environment
-const crypto = globalThis.crypto || require('crypto').webcrypto;
-
 test.describe('Elo Rating Updates', () => {
   test.beforeAll(async () => {
     // Clean up any existing test data
@@ -285,8 +282,6 @@ ${tournament.id},1,1,${player1.name},${player3.name},10,${player2.name},${player
 ${tournament.id},2,1,${player1.name},${player3.name},10,${player2.name},${player4.name},5,odds`;
     
     // Upload first match through UI
-    const fs = require('fs');
-    const path = require('path');
     const tmpFile1 = path.join('/tmp', `elo-test-multi-1-${Date.now()}.csv`);
     fs.writeFileSync(tmpFile1, csvContent1);