Turn the 2674-line client.rs into a client/ directory module (mod.rs facade +
8 submodules) behind glob/`use self::` re-exports, so crate::client::X paths
(NativeClient, ProbeOutcome, AudioPacket, display_hdr_env_override) stay
byte-stable. Leaf lifts: frame_channel.rs (the FIFO hand-off + jump-to-live
consts + DecodeLatAcc), recovery.rs (RfiRecovery loss-range detector),
probe.rs (ProbeState/ProbeOutcome), planes.rs (side-plane queues + AudioPacket),
control.rs (CtrlRequest/Negotiated), worker.rs (WorkerArgs + reject_from_close),
pairing.rs (NativeClient::pair). The per-frame pump moves WHOLE as a plain
`pub(super) async fn run_pump` (was worker_main) — the only edit is the
signature line: no trait object, no Box, no per-frame allocation or indirection.
NativeClient + its public impl + Drop + the cfg-gated thread-pin/hot-tid helpers
stay in the facade. Visibility bumps are pub(crate) (struct + each field for
WorkerArgs/Negotiated/ProbeState; FrameChannel + each method); reject_from_close
is pub(crate) (sibling access). No behavior change.
Verified: Linux clippy (quic + no-default, -D warnings) + full cargo test;
Windows clippy (both) + test --lib; macOS clippy (apple thread-pin variant) +
165 lib tests. On-glass jump-to-live + ABR smoke still owed (pump is a pure
relocation, so this is a formality) per the plan's pump gate.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
