OptionalbillingBilling mode (e.g., PAY_PER_REQUEST or PROVISIONED).
OptionalreadProvisioned throughput RCU (requires billingMode=PROVISIONED).
OptionaltableTableName to set in YAML (often env-expanded by get-dotenv).
OptionalwriteProvisioned throughput WCU (requires billingMode=PROVISIONED).
Config shape for managed table properties (non-generated keys).