- Show the active model override in Agent Information, including support for legacy runtimeConfig.model values
- Add a Model section to agent settings with CustomModelDropdown and available model loading via fetchModels
- Persist model overrides as modelProvider/modelId/model and clear those fields when reverting to global default
- Expand AgentDetailView tests to cover model display, prefill behavior, save payloads, and clearing overrides
- Add a changeset for @gsxdsm/fusion describing the new agent model selection capability
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