feat(cli): implement customizable witty phrase positioning

- Add ui.wittyPhrasePosition setting (status, inline, ambient)
- Refactor usePhraseCycler to return tips and wit separately
- Implement 'inline' position: append witty phrases in gray after status
- Update status length estimation to account for inline wit
- Replace pause icon with up arrow (↑) for awaiting approval
- Remove 'Tip:' prefix from loading phrases
- Update unit tests and research report

packages/cli/src/ui/contexts/UIStateContext.tsx

@@ -170,6 +170,8 @@ export interface UIState {
   cleanUiDetailsVisible: boolean;
   elapsedTime: number;
   currentLoadingPhrase: string | undefined;
+  currentTip: string | undefined;
+  currentWittyPhrase: string | undefined;
   historyRemountKey: number;
   activeHooks: ActiveHook[];
   messageQueue: string[];