add git diffs and permission support

e2e/playwright.config.ts

@@ -1,5 +1,11 @@
 import { defineConfig, devices } from '@playwright/test';
 
+// E2E uses different ports to avoid conflicts with dev servers
+export const E2E_BACKEND_PORT = 3001;
+export const E2E_FRONTEND_PORT = 5174;
+export const E2E_BACKEND_URL = `http://localhost:${E2E_BACKEND_PORT}`;
+export const E2E_FRONTEND_URL = `https://localhost:${E2E_FRONTEND_PORT}`;
+
 export default defineConfig({
   testDir: './tests',
   fullyParallel: false,
@@ -9,7 +15,7 @@ export default defineConfig({
   reporter: 'list',
   timeout: 30000,
   use: {
-    baseURL: 'https://localhost:5173',
+    baseURL: E2E_FRONTEND_URL,
     trace: 'on-first-retry',
     ignoreHTTPSErrors: true,
   },