ABI v21 (per-client access WP10): punktfunk_connection_grants and
punktfunk_connection_access_expires_in read the session's LIVE access
state (Welcome seed, latest-wins over every mid-session AccessUpdate),
and punktfunk_connection_end_reject surfaces the typed rejection a
mid-session close carried, so an access expiry renders its real
sentence instead of the generic host-error one. NEW symbols only; the
Rust-side live slots they read landed with the pf-client-core work.
Swift: PunktfunkConnection wraps the three (grant bits, the derived
AccessLevel labels, and class-gated send funnels — key/pointer/pad/pen/
mic events the grants exclude never leave the device); SessionModel
polls at the 1 Hz stats tick for the chip ("Controller only · ends in
1 h 58 m"), the T−5 m / T−1 m warning toasts, mic + clipboard hiding,
and the live release of an engaged capture on revoke; macOS gates
engage + the cursor grab and the iPad gates pointer lock on the bits;
tvOS states the level as a stats-overlay line instead of a chip. A
full-and-permanent session — every old host — renders exactly today's
UI.