add git diffs and permission support

e2e/global-setup.ts

@@ -1,12 +1,30 @@
 import { startServers } from './server-utils.js';
+import { E2E_BACKEND_PORT, E2E_FRONTEND_PORT } from './playwright.config.js';
+import { unlinkSync } from 'fs';
+import { homedir } from 'os';
+import { join } from 'path';
+
+function cleanupTestFiles() {
+  const testFile = join(homedir(), 'foo.md');
+  try {
+    unlinkSync(testFile);
+    console.log('Cleaned up test file:', testFile);
+  } catch {
+    // File doesn't exist, ignore
+  }
+}
 
 export default async function globalSetup() {
+  // Clean up test files from previous runs
+  cleanupTestFiles();
+
   // Skip if servers are managed externally (e.g., by scripts/test)
   if (process.env.SKIP_SERVER_SETUP) {
     console.log('\n=== Skipping server setup (SKIP_SERVER_SETUP is set) ===\n');
     return;
   }
   console.log('\n=== Starting E2E Test Environment ===\n');
-  await startServers(3000, 5173);
+  console.log(`Backend port: ${E2E_BACKEND_PORT}, Frontend port: ${E2E_FRONTEND_PORT}`);
+  await startServers(E2E_BACKEND_PORT, E2E_FRONTEND_PORT);
   console.log('\n=== E2E Test Environment Ready ===\n');
 }