Preserve Claude model and thinking preferences (#2912)

* fix(agents): preserve Claude thinking selections

Model switches now resolve thinking against the target model's saved preference instead of resetting to the catalog default. Claude owns its configured-model defaults and legacy Fable alias handling, while persisted permission modes remain unchanged.

* chore(claude): tag Fable compatibility shim

* fix(app): resolve persisted model aliases

* fix(models): preserve aliases for older clients

* fix(models): hide compatibility aliases from listings

* fix(settings): hide compatibility model aliases

* test(claude): cover legacy catalog entry

* test(app): expect mock thinking controls in schedules

* fix(app): preserve queued thinking preferences

* fix(app): reconcile schedule provider snapshots

* fix(app): preserve schedule model selections

* fix(claude): preserve exact configured model ids

* fix(app): preserve committed thinking preferences

* fix(app): preserve aliased schedule thinking

packages/app/src/hooks/use-form-preferences.ts

@@ -29,7 +29,7 @@ async function loadFormPreferences(): Promise<FormPreferences> {
 export interface UseFormPreferencesReturn {
   preferences: FormPreferences;
   isLoading: boolean;
-  updatePreferences: (updates: FormPreferenceUpdate) => Promise<void>;
+  updatePreferences: (updates: FormPreferenceUpdate) => Promise<FormPreferences>;
 }
 
 export function useFormPreferences(): UseFormPreferencesReturn {
@@ -47,6 +47,7 @@ export function useFormPreferences(): UseFormPreferencesReturn {
     async (updates: FormPreferenceUpdate) => {
       const next = await createAgentPreferencesService.update(updates);
       queryClient.setQueryData<FormPreferences>(FORM_PREFERENCES_QUERY_KEY, next);
+      return next;
     },
     [queryClient],
   );