wallet2: sanitize untrusted daemon status in sweep unmixable

What changed, and why it matters

This commit changes how a Monero wallet handles error status codes returned by a remote daemon during a cleanup operation called 'sweep unmixable.' Previously, the wallet trusted the daemon's raw status response. Now it passes that status through a helper that treats certain errors differently when the daemon is not trusted. This is a hardening fix: a malicious or compromised remote node could potentially return a misleading status code that the wallet would treat as a fatal error, possibly disrupting the operation or influencing wallet behavior. The patch narrows what the wallet believes from an untrusted daemon.

Security signals we found

Evidence from the diff

Changed components

### src/wallet/wallet2.cpp
@@ -11797,7 +11797,7 @@ std::vector<size_t> wallet2::select_available_outputs_from_histogram(uint64_t co
   {
     const boost::lock_guard<boost::recursive_mutex> lock{m_daemon_rpc_mutex};
     bool r = net_utils::invoke_http_json_rpc("/json_rpc", "get_output_histogram", req_t, resp_t, *m_http_client, rpc_timeout);
-    THROW_ON_RPC_RESPONSE_ERROR(r, {}, resp_t, "get_output_histogram", error::get_histogram_error, resp_t.status);
+    THROW_ON_RPC_RESPONSE_ERROR(r, {}, resp_t, "get_output_histogram", error::get_histogram_error, get_rpc_status(m_trusted_daemon, resp_t.status));
   }
 
   std::set<uint64_t> mixable;