Write and debug Flink SQL that runs on Confluent Cloud, enforcing the CC-vs-Apache-Flink (OSS) dialect boundary. Use when the working directory is a Confluent Cloud Flink workspace, when a Flink SQL statement needs checking before it runs on a CC compute pool, or when the user mentions CC Flink, Confluent Cloud Flink SQL, the `confluent flink` CLI, a CFU compute pool, `CREATE CONNECTION`, or asks to check or debug Flink SQL whose runtime is Confluent Cloud. Also trigger when a Flink SQL question is posed and nothing establishes an Apache Flink OSS runtime. Do NOT trigger for: building or deploying Flink UDFs in Java (UDF/UDTF/PTF — use flink-udf); a full CDC pipeline from a database through Flink into Tableflow/Iceberg/Delta Lake (use confluent-cloud-cdc-tableflow); Kafka Streams topology work (use kafka-streams-programming); or Flink SQL confirmed to run on Apache Flink OSS, not Confluent Cloud.