"Move to channel…" closes the sheet and marks the client, and the next
channel tapped is where they go; a bar above the tree names them and cancels.
"Move to own channel" shows while they are elsewhere.
Both show only with some i_client_move_power. The server's needed
permissions never carry it, even for an admin, so core asks for it with
permget on connect and whenever our own groups change; a refusal (guests may
not ask) counts as none. Whether it beats the client's needed move power only
the server knows, and it refuses when not.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>