Centralize Pulse demo data in a Zustand persisted store so core app actions survive navigation, refreshes, and browser restarts. Chat messages, room summaries, converted tasks, pinned decisions, approvals, expenses, tasks, projects, teams, invites, inbox items, notifications, reports, meetings, autopilot plans, settings, and theme state now read and write through pulse-demo-state-v1 in localStorage, with a Settings reset control to restore the original sample workspace.