a662188a57
The panel could show the DSH default model but not change it, so an operator who wanted a different Executor or Assessor model had to edit the profile by hand. PUT default-model routes a switch through the Session Controller, which is the same path the DSH picker uses: it retargets the master Session and lets agent-default-model persist the choice into the profile through configEditor. switchDefaultModel refuses a provider the catalog cannot route and a model its group does not offer, and reports unchanged rather than writing the same value again. selectModel saves the default in the background, so the switch polls the catalog until the saved selection appears instead of assuming the write landed; effort is compared against the selection the Controller resolved, because it fills in a default effort the caller never sent. The refusal carries its reason as a code, which ApiError now keeps so the panel can word it in the operator's language instead of showing host English.