♻️ Serve frontend from FastAPI (#2393)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

frontend/playwright.config.ts

@@ -1,6 +1,8 @@
 import { defineConfig, devices } from '@playwright/test';
 import 'dotenv/config'
 
+const baseURL = process.env.PLAYWRIGHT_BASE_URL ?? 'http://localhost:5173'
+
 /**
  * Read environment variables from file.
  * https://github.com/motdotla/dotenv
@@ -24,7 +26,7 @@ export default defineConfig({
   /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
   use: {
     /* Base URL to use in actions like `await page.goto('/')`. */
-    baseURL: 'http://localhost:5173',
+    baseURL,
 
     /* Collect trace when retrying the failed test. See https://playwright.dev/docs/trace-viewer */
     trace: 'on-first-retry',
@@ -83,9 +85,11 @@ export default defineConfig({
   ],
 
   /* Run your local dev server before starting the tests */
-  webServer: {
-    command: 'bun run dev',
-    url: 'http://localhost:5173',
-    reuseExistingServer: !process.env.CI,
-  },
+  webServer: process.env.PLAYWRIGHT_BASE_URL
+    ? undefined
+    : {
+        command: 'bun run dev',
+        url: baseURL,
+        reuseExistingServer: !process.env.CI,
+      },
 });