feat: add qr signatures

packages/lib/constants/document.ts

@@ -77,4 +77,11 @@ export const DOCUMENT_SIGNATURE_TYPES = {
     }),
     value: DocumentSignatureType.UPLOAD,
   },
+  [DocumentSignatureType.QR]: {
+    label: msg({
+      message: `QR code`,
+      context: `Sign using a mobile phone via QR code`,
+    }),
+    value: DocumentSignatureType.QR,
+  },
 } satisfies Record<DocumentSignatureType, DocumentSignatureTypeData>;