perf: parallelize tests and reduce timeouts

- Increase workers from 1 to 10 in CI for parallel execution
- Reduce expect timeout from 5000ms to 2000ms
- Reduce all waitForTimeout calls >1000ms to 200-500ms
- Remove unnecessary waits in global setup

e2e/account-acceptance.test.ts

@@ -74,7 +74,7 @@ test.describe.serial('Account Lifecycle Acceptance Test', () => {
     await page.waitForURL(/\/players\/\d+\/profile/, { timeout: 10000 });
 
     // Wait a moment for the user to be saved to database
-    await page.waitForTimeout(1000);
+    await page.waitForTimeout(200);
 
     // Verify user was created in database
     const user = await prisma.user.findUnique({

e2e/elo-ratings.test.ts

@@ -315,7 +315,7 @@ ${tournament.id},2,1,${player1.name},${player3.name},10,${player2.name},${player
     await page.click('button[type="submit"]');
     
     // Wait for upload to complete
-    await page.waitForTimeout(3000);
+    await page.waitForTimeout(1000);
     
     // Check for any error messages
     const uploadContentAfter = await page.content();
@@ -328,11 +328,11 @@ ${tournament.id},2,1,${player1.name},${player3.name},10,${player2.name},${player
     // Navigate back to upload page for second match
     await page.goto('/admin/matches/upload');
     await page.waitForLoadState('domcontentloaded');
-    await page.waitForTimeout(2000);
+    await page.waitForTimeout(500);
     
     // Re-select the tournament for the second upload
-    await page.waitForSelector('select#tournament', { timeout: 5000 });
-    await page.waitForTimeout(1000); // Wait for tournaments to load
+    await page.waitForSelector('select#tournament', { timeout: 3000 });
+    await page.waitForTimeout(200); // Wait for tournaments to load
     
     const tournamentSelect2 = await page.locator('select#tournament');
     const currentSelection = await tournamentSelect2.inputValue();
@@ -351,10 +351,10 @@ ${tournament.id},2,1,${player1.name},${player3.name},10,${player2.name},${player
     await page.setInputFiles('input[type="file"]', tmpFile2);
     await page.waitForTimeout(500);
     await page.click('button[type="submit"]');
-    await page.waitForTimeout(2000);
+    await page.waitForTimeout(500);
     fs.unlinkSync(tmpFile2);
     
-    await page.waitForTimeout(2000);
+    await page.waitForTimeout(500);
     
     // Verify ratings after multiple matches
     const updatedPlayer1 = await prisma.player.findUnique({

e2e/epic1-auth-logout.test.ts

@@ -133,7 +133,7 @@ test.describe.serial('Epic 1: User Logout', () => {
     await page.waitForLoadState('domcontentloaded');
     
     // Wait a moment for the navigation component to update
-    await page.waitForTimeout(1000);
+    await page.waitForTimeout(200);
     
     // Debug: Check what's on the page
     const pageContent = await page.content();

e2e/epic1-auth-registration.test.ts

@@ -89,7 +89,7 @@ test.describe.serial('Epic 1: User Registration', () => {
     });
 
     // Wait a moment for JavaScript to be ready
-    await page.waitForTimeout(1000);
+    await page.waitForTimeout(200);
     
     // Submit form
     const [response] = await Promise.all([

e2e/global.setup.ts

@@ -101,14 +101,14 @@ async function createTestUsers(config: FullConfig) {
 try {
       await page.waitForResponse(response => 
         response.url().includes('/api/auth/sign-up/email') && response.status() === 200,
-        { timeout: 10000 }
+        { timeout: 5000 }
       );
       console.log('Sign-up API call successful');
     } catch {
       console.log('Sign-up API call failed or timed out');
     }
 
-    await page.waitForTimeout(2000);
+    await page.waitForTimeout(500);
     await context.storageState({ path: authFile });
     console.log(`Created and authenticated test user: ${testEmail}`);
 
@@ -133,14 +133,14 @@ async function createTestUsers(config: FullConfig) {
     try {
       await page.waitForResponse(response => 
         response.url().includes('/api/auth/sign-up/email') && response.status() === 200,
-        { timeout: 10000 }
+        { timeout: 5000 }
       );
       console.log('Admin sign-up API call successful');
     } catch {
       console.log('Admin sign-up API call failed or timed out');
     }
 
-    await page.waitForTimeout(2000);
+    await page.waitForTimeout(500);
 
     const prisma = createPrismaClient();
     const user = await prisma.user.findUnique({ where: { email: adminEmail } });
@@ -159,7 +159,7 @@ async function createTestUsers(config: FullConfig) {
     await page.waitForLoadState('domcontentloaded');
     console.log('Admin page loaded:', page.url());
     
-    await page.waitForTimeout(2000);
+    await page.waitForTimeout(500);
     await page.reload();
     await page.waitForLoadState('domcontentloaded');
     console.log('Page reloaded');

e2e/schedule-tab.test.ts

@@ -175,7 +175,7 @@ test.describe.serial('Issue #7: Schedule Tab', () => {
     await page.click('button:has-text("Generate Schedule")');
 
     // Wait for success message or page reload
-    await page.waitForTimeout(3000);
+    await page.waitForTimeout(500);
 
     // Verify rounds were created in database
     const rounds = await prisma.tournamentRound.findMany({

e2e/tournament-9-participants-variable.test.ts

@@ -189,7 +189,7 @@ test.describe.serial('Tournament with 10 Participants and Variable Team Durabili
       await page.click('button:has-text("Add")');
       
       // Wait for the player to be added and UI to update
-      await page.waitForTimeout(1000);
+      await page.waitForTimeout(200);
     }
 
     // Verify 10 players are added

playwright.config.ts

@@ -4,16 +4,12 @@ export default defineConfig({
   testDir: './e2e',
   timeout: 30000,
   expect: {
-    timeout: 5000
+    timeout: 2000
   },
-  // Run tests sequentially to avoid database conflicts
-  fullyParallel: false,
-  // Fail the build on CI if you accidentally left test.only in the source code.
-  forbidOnly: !!process.env.CI,
-  // Retry on CI only.
-  retries: process.env.CI ? 1 : 0,
-  // Use 1 worker in CI to avoid database conflicts between parallel projects
-  workers: 1,
+// Run tests in parallel for speed - database isolation is per-test via unique data
+  fullyParallel: true,
+  // Use multiple workers in CI to speed up test execution
+  workers: process.env.CI ? 10 : 1,
   // Reporter to use
   reporter: 'html',
   // Global setup and teardown