delete all e2e tests (#22501)

Cherry-picked from ea463e6

Author: thdxr

bun.lock

@@ -58,7 +58,7 @@
       "marked": "17.0.1",
       "marked-shiki": "1.2.1",
       "remend": "1.3.0",
-      "@playwright/test": "1.51.0",
+      "@playwright/test": "1.59.1",
       "typescript": "5.8.2",
       "@typescript/native-preview": "7.0.0-dev.20251207.1",
       "zod": "4.1.8",

package.json

@@ -31,11 +31,10 @@ Your app is ready to be deployed!
 
 ## E2E Testing
 
-Playwright starts the Vite dev server automatically via `webServer`, and UI tests need an opencode backend (defaults to `localhost:4096`).
-Use the local runner to create a temp sandbox, seed data, and run the tests.
+Playwright starts the Vite dev server automatically via `webServer`, and UI tests expect an opencode backend at `localhost:4096` by default.
 
 ```bash
-bunx playwright install
+bunx playwright install chromium
 bun run test:e2e:local
 bun run test:e2e:local -- --grep "settings"
 ```