feat: add confluence/slack search tools, chat history, cloud Qdrant support, sync trigger fixes

fix: update user roles to include 'org_admin' in Sidebar and UserInvite types

User Settings (/settings) — 3 tabs:

feat: enhance UI state management with graph collapse functionality and improve error handling in API requests

feat: enhance agent event structure and improve SearchBox functionality

feat: add Zustand stores for filters and UI state management