- ApproveButton: 'use client', POSTs to /api/client/approve with token + deliverableId, calls router.refresh(); shows immutable "Approvato il [date]" badge once approved_at is set
- CommentForm: 'use client', POSTs to /api/client/comment, calls router.refresh() on success; clears textarea after submit
- CommentList: presentational Server Component, labels client author as "Tu" and admin as "iamcavalli"
- page.tsx: fetches all comments server-side (scoped to client's task/deliverable ids), passes token + comments to ClientDashboard; revalidate=0 ensures approvals and comments always fresh
- client-dashboard.tsx: passes token + comments down to PhaseTimeline
- phase-timeline.tsx: renders ApproveButton on each deliverable (pending/submitted/approved), CommentList + CommentForm below each deliverable and each task