Bootstrap copied BFF and local accounts with public Sendico contracts (#34)

backend/contracts/sendico/api/parameters/cursor.yaml

@@ -0,0 +1,9 @@
+components:
+  parameters:
+    Cursor:
+      name: cursor
+      in: query
+      required: false
+      description: Opaque cursor from a previous page response (`page.next_cursor`).
+      schema:
+        type: string