fix: workspace reset now properly clears UI state

resetLocalWorkspace() deleted workspace.json and the scratchpad
directory but never broadcast the fresh state to the renderer.
The renderer also discarded the IPC return value. This left stale
projects, sessions, and activities visible in the UI after reset.

- Emit workspace-updated after reloading the workspace in the backend
- Use the returned fresh workspace to immediately update renderer state
- Clear sessionActivities and close the settings panel on reset

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/main/AryxAppService.ts

@@ -233,7 +233,9 @@ export class AryxAppService extends EventEmitter<AppServiceEvents> {
     this.sidecarCapabilitiesPromise = undefined;
     this.didScheduleInitialProjectGitRefresh = false;
 
-    return this.loadWorkspace();
+    const workspace = await this.loadWorkspace();
+    this.emit('workspace-updated', workspace);
+    return workspace;
   }
 
   async addProject(): Promise<WorkspaceState> {

src/renderer/App.tsx

@@ -350,7 +350,10 @@ export default function App() {
         onSetTheme={(theme) => void api.setTheme(theme)}
         onOpenAppDataFolder={() => void api.openAppDataFolder()}
         onResetLocalWorkspace={async () => {
-          await api.resetLocalWorkspace();
+          const fresh = await api.resetLocalWorkspace();
+          setWorkspace(fresh);
+          setSessionActivities({});
+          setShowSettings(false);
         }}
         patterns={workspace.patterns}
         sidecarCapabilities={sidecarCapabilities}