fix: add owner field to batch-ctf-redemption request (#13)

The relayer expects 'owner' as a top-level field in the batch
redemption payload, but request_batch_ctf_redemption was only
sending { chainId, redemptions }. This caused the relayer to
return 'Invalid owner address format'.

Now includes the signer's address as 'owner' in the request body,
matching the frontend's request format:
  { chainId, owner, redemptions }

Also adds _require_signer() check since owner comes from the signer.

Author: ten-nex

turbine_client/client.py

@@ -1593,8 +1593,10 @@ def request_batch_ctf_redemption(
             AuthenticationError: If no auth is configured.
         """
         self._require_auth()
+        self._require_signer()
         data = {
             "chainId": self._chain_id,
+            "owner": self._signer.address,
             "redemptions": redemptions,
         }
         return self._http.post(