Sync manifest

Show all client files available to the signed-in user:

npm run team -- sync manifest

Show one client:

npm run team -- sync manifest --client acme

Expected output:

clients/acme/context/notes.md    245    write
clients/acme/AGENTS.md           800    write

If no files are available, confirm that the selected Team has active clients. For a Team Member, also confirm there is an active client grant.

Next: Sync pull