ScopedLocalModelsSettings was one ~760-line component that threaded
`owner` into every child. The pane now provides its owner through
LocalModelsOwnerProvider (still keyed by owner, so each connection/profile
remounts), and renders sibling components that read it from context: the
quickstart hero, runtime, hardware, models (catalog and sideloaded rows)
and browse sections. Request actions live in local-models-actions.ts and
keep the current-owner toast fence.
Two intentional differences: the delete spinner is per row instead of one
shared id, and the runtime install/update buttons pass the pane's owner
and QueryClient explicitly (the unused handleInstallRuntime is gone).
787c739a2a