/usage, /session, /advisor status, /jobs, /changelog, /context, and
/memory view mounted their finalized panel immediately via ctx.present()
instead of ctx.presentCommandOutput(), the streaming-deferral path added in
#5427 for /tools and /mcp. When invoked mid-turn, the panel landed above a
still-growing live block and the append-only scrollback contract recommitted
it lower down, so it appeared twice in native scrollback.
Route all six large command panels through presentCommandOutput() so they
defer until agent_end, matching /tools and /mcp.
Fixes#6767
roboomp
4bc71bdafc