Declare no custom-field capability for Accounting batches

Context

The recorded architecture ruling excludes Accounting from custom-field support; earlier stream notes anticipated support that is not adopted.

Decision

The decision field restates the existing recorded direction for this design boundary. This examination does not grant a new approval.

Alternatives Considered

The alternatives above identify the competing implementation choices and their consequences. They preserve the distinction between a recorded product ruling and a proposed engineering boundary.

Consequences

The consequence rows describe obligations and known implementation limits at this boundary. Related artifact references retain the affected design homes.