feat(chat): remember JSON output view mode (#3072)

* feat(chat): remember JSON output view mode

* perf(chat): skip JSON preference reads for text output

* fix(chat): persist JSON view in UI settings

* fix(chat): round-trip JSON view preference

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Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>

packages/ui/src/lib/desktop.ts

@@ -203,6 +203,7 @@ export type DesktopSettings = {
   recentEfforts?: Record<string, string[]>;
   diffLayoutPreference?: 'dynamic' | 'inline' | 'side-by-side';
   gitChangesViewMode?: 'flat' | 'tree';
+  toolJsonViewMode?: 'summary' | 'formatted' | 'raw';
   directoryShowHidden?: boolean;
   filesViewShowGitignored?: boolean;