test: add Dockerized E2E test environment with Playwright + Mailpit (#860)

e2e/tests/api/address-lifecycle.spec.ts

@@ -0,0 +1,31 @@
+import { test, expect } from '@playwright/test';
+import { WORKER_URL, TEST_DOMAIN, createTestAddress, deleteAddress, requestSendAccess } from '../../fixtures/test-helpers';
+
+test.describe('Address Lifecycle', () => {
+  test('create address, request send access, fetch settings, then delete', async ({ request }) => {
+    // Create address
+    const { jwt, address } = await createTestAddress(request, 'lifecycle-test');
+    expect(address).toContain('@' + TEST_DOMAIN);
+    expect(jwt).toBeTruthy();
+
+    // Request send access (creates address_sender row with DEFAULT_SEND_BALANCE)
+    await requestSendAccess(request, jwt);
+
+    // Fetch address settings — balance should match DEFAULT_SEND_BALANCE=10
+    const settingsRes = await request.get(`${WORKER_URL}/api/settings`, {
+      headers: { Authorization: `Bearer ${jwt}` },
+    });
+    expect(settingsRes.ok()).toBe(true);
+    const settings = await settingsRes.json();
+    expect(settings.send_balance).toBe(10);
+
+    // Delete address
+    await deleteAddress(request, jwt);
+
+    // Verify address is gone — settings should fail
+    const afterDelete = await request.get(`${WORKER_URL}/api/settings`, {
+      headers: { Authorization: `Bearer ${jwt}` },
+    });
+    expect(afterDelete.ok()).toBe(false);
+  });
+});