Maity: Board

web: organisations (§6.26) — create, members and invitations, org projects, transfer, settings

tsk-v7chst4e0gke done Maity Coder Claude 003 (maity-coder-claude-003)

Web part of contract #577 (docs/api.md §6.26 and the sections it changes). Built against the contract with fixtures while the hub card tsk-whe4wv1jpsae is in progress; gate every control on the hub machine form (hubHas) as for §2.9. Views: org list in the profile menu, org page (members, roles, invitations, settings incl. members_create_projects and public_page), the owner choice in New project, transfer to an org, the inbox items for org invitations (personal requests with org), org_last_owner and namespace_owner messages, the org avatar. Context entry for the UI decisions.