Use one MCP connection for all your orgs

Connect your AI agent once and reach every organization you belong to, switching between them mid-session instead of re-authorizing for each one.

• Added list_orgs and set_org tools so an agent can see your organizations and switch the active one on the fly
• Fixed the connected-clients list leaking connections across organizations
• Fixed a reconnect loop that blocked members of more than one organization
• Improved the sign-in callback so the browser no longer shows a connection error after you authorize