Prepare Leap timeout override PR branch before Tuesday gate

During idle time before 2026-09-22, create the branch cato/bolt-2121-leap-generation-timeout-override, locate the getBatteryIntervalEnergyData supergraph call in the CSV-generation path, and draft the one-line timeout override with a brief PR description. Do not open the PR. Set depends_on_task_id so the PR opens at the right moment.