test(documenso): real-API E2E spec + 2.x response normalization

The documenso-template pathway was returning 201 with documensoId=null
because Documenso 2.x renamed `id` → `documentId` and recipient `id` →
`recipientId` in its API responses. Our DocumensoDocument interface
still expected the legacy v1.13 shape, so destructuring silently yielded
undefined and the documents row got NULL'd.

- Add normalizeDocument() in documenso-client that reads either field
  name and surfaces the legacy `id` form downstream consumers expect
- Apply normalization at every callsite that returns DocumensoDocument
  (createDocument, generateDocumentFromTemplate, sendDocument, getDocument)
- New realapi Playwright project (opt-in: --project=realapi) targeting
  tests/e2e/realapi/, with 2-min timeout for real-network calls
- New spec: documenso-real-api.spec.ts seeds client/yacht/berth/interest
  via the v1 API, fires generate-and-sign through the documenso-template
  pathway, asserts the response carries a documensoId, then GETs the
  document directly from Documenso to confirm it exists with PENDING
  status and recipients populated

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

playwright.config.ts

@@ -51,6 +51,18 @@ export default defineConfig({
         viewport: { width: 1440, height: 900 },
       },
     },
+    {
+      // Real-API tests hit live external services (Documenso, IMAP, etc.).
+      // Opt-in only: pnpm exec playwright test --project=realapi
+      name: 'realapi',
+      testMatch: /realapi\/.*\.spec\.ts/,
+      dependencies: ['setup'],
+      timeout: 120_000,
+      use: {
+        ...devices['Desktop Chrome'],
+        viewport: { width: 1440, height: 900 },
+      },
+    },
   ],
 
   // Don't start the dev server — we expect it to already be running