Function profile_update 

pub async fn profile_update(
    profile_id: ProfileId,
    patch: ProfileUpdatePatch,
    store: State<'_, ProfileStoreHandle>,
) -> Result<ProfileSummary, AppError>

Update a manual profile’s display name, compat flags, and/or default region.

Returns AppError::NotFound when the profile does not exist or is not a manual profile (discovered profiles are read-only).