ui : run format on the branch (sort enums, members, attributes)
Apply eslint --fix across the changed files: sort the SidebarAction enum,
ModelsService static members, the sidebar discover-models props, and add a
missing blank line in the model-params-fallback hook. This is the result of
`npm run format` on the WIP.
Assisted-by: llama-ui:Qwen3.8-Flash-Next