Run Mailpit E2E specs serially to stop flakes.

account-settings and password-reset called clearMailpit in parallel with
other tests, wiping emails before waitForEmailChangeToken could read them.

Co-authored-by: Cursor <cursoragent@cursor.com>

AGENTS.md

@@ -272,7 +272,7 @@ docker compose -f docker-compose.e2e.yml down
 
 - Config: `frontend/playwright.config.ts`
 - Tests: `frontend/e2e/*.spec.ts`
-- Serial specs (`deferred-payment-admin`, `admin-fulfillment`): Playwright project `chromium-serial`, `workers: 1`
+- Serial specs (shared Mailpit / DB state): `deferred-payment-admin`, `admin-fulfillment`, `account-settings`, `password-reset` — Playwright project `chromium-serial`, `workers: 1`
 
 ### CI (future)
 - `./gradlew check` and `npm run test && npm run lint` must pass before merge.

frontend/playwright.config.ts

@@ -26,6 +26,8 @@ export default defineConfig({
       testIgnore: [
         '**/deferred-payment-admin.spec.ts',
         '**/admin-fulfillment.spec.ts',
+        '**/account-settings.spec.ts',
+        '**/password-reset.spec.ts',
       ],
       use: { browserName: 'chromium' },
     },
@@ -34,6 +36,8 @@ export default defineConfig({
       testMatch: [
         '**/deferred-payment-admin.spec.ts',
         '**/admin-fulfillment.spec.ts',
+        '**/account-settings.spec.ts',
+        '**/password-reset.spec.ts',
       ],
       fullyParallel: false,
       workers: 1,