DPONE_WORKLOAD_INIT_BATCH_VAR_RESERVED

The batch manifest template tried to override a reserved variable such as src_schema or src_table. Reserved names are injected by the batch compiler and cannot appear in table-level vars.

Fix

Remove the reserved override from the batch manifest tables section, or switch to catalog layout for a single-process manifest:

dpone workload init marketing/my_app \
  --source clickhouse --sink mssql --strategy full_refresh \
  --layout catalog --apply

See manifest schemas for batch naming rules.