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

backend/contracts/sendico/models/common/pagination.yaml

@@ -0,0 +1,10 @@
+components:
+  schemas:
+    CursorPageResponse:
+      description: Cursor-based pagination metadata returned with list responses.
+      type: object
+      additionalProperties: false
+      properties:
+        next_cursor:
+          description: Opaque cursor to request the next page; omitted when no more items exist.
+          type: string