fix(portal): prefix unused totalPending param with underscore

Silence @typescript-eslint/no-unused-vars for totalPending in
PaymentModal — it is accepted as a prop for API compatibility but the
modal computes selectedTotal from selected invoices instead.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

packages/db/package.json

@@ -33,5 +33,6 @@
     "drizzle-kit": "^0.30.4",
     "tsx": "^4.19.0",
     "typescript": "^5.7.3"
-  }
+  },
+  "license": "AGPL-3.0-only"
 }