Argument forms of IMMEDIATE_UI commands that are still pure selector opens.
The bare-form check in _can_bypass_queue (value == cmd) parks every
argument form behind the queue because most of them act directly (e.g.
/model <name> switches models). Entries here are the exceptions: their
handler routes straight to a modal open and defers all real work (validation,
mutation) to the dismiss callback, exactly like the bare form. /auto model
with no further arguments qualifies — it only pushes the classifier-model
picker — while /auto model <spec> and /auto model clear validate and
mutate classifier state, so they stay queue-bound. Each entry must be an exact
lowered command-plus-subcommand string with single-space separators and no
further arguments; the bypass canonicalizes the submitted value's whitespace
before comparing against it.
