walnuthq/dpm-trace: examples/asset/unittests/daml/Test.daml

Daml contract source - walnuthq/dpm-trace/examples/asset/unittests/daml/Test.daml ```daml -- Copyright (c) 2026 Walnut. Apache-2.0. -- -- Daml Script unit tests for the Asset contract. -- -- These are ordinary `daml test` scripts: they run on a fresh in-memory ledger, -- need no Canton infrastructur