Codex review (P1) flagged that the first regression test asserted against the
generated models.json snapshot via getBundledModels, so it validated only the
committed artifact and could stay green when the source mapping broke.
Per AGENTS.md, regression tests for generated catalogs must target the
resolver/descriptor. Rewrite the test to feed a representative models.dev
amazon-bedrock payload (all six opus-5 prefix rows, including the undocumented
jp. profile and a filtered non-tool row) through mapModelsDevToModels and then
dropUnsupportedBedrockGeoIds, asserting the five AWS-documented IDs survive.