[Bug] Empty cluster drowndown and no executor available even though clusters are added

[gmdfalk]

Search before asking

• I searched in the issues and found nothing similar.

Paimon UI version

main

Compute Engine

Flink

Minimal reproduce step

1. Bring up a local instance of mysql, paimon and flink
2. Create a cluster connection in paimon webui
3. Try to run a query against that cluster

What doesn't meet your expectations?

Should be able to select one of the existing clusters to run the query against but the dropdown is empty.

Anything else?

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!

[AnemoneIndicum]

@gmdfalk Hi, executing queries in the SQL Editor supports submitting tasks to clusters in Flink SQl Gateway deployment mode.