feat(console): full gamepad shell — hosts, PIN pairing, settings, OSK, screen transitions

The Skia console UI grows from the single library coverflow into a complete
couch shell (Apple gamepad-UI parity), so a Deck/gamescope session is
self-sufficient end to end:

- Home: host carousel (saved + discovered + Add Host tile) with presence
  pips, paired locks, wake & connect; A/Y/X/B per the Apple launcher.
- In-console SPAKE2 PIN pairing (previously needed the Decky plugin or a
  desktop), add-host with a controller keyboard, couch settings over the
  shared Settings store, wake-on-LAN overlay with retry, cancelable dials.
- Shell chrome: screen stack with push/pop entrance/exit choreography
  (slide + fade + recede; aurora↔form backdrop crossfade), per-pad button
  glyphs (PS shapes vs ABXY, keycaps with no pad), menu haptics, toasts,
  embedded Geist typography, in-stream start banner.
- Steam Deck: our OSK never draws — fields start SDL text input (the new
  Overlay::text_input_active hook) and Steam's keyboard types; a hint chip
  points at STEAM + X. Other Linux gets the full gamepad keyboard tray.
- punktfunk-session: bare --browse opens Home; --browse host opens that
  host's library with Home behind it (Decky launches keep working, B now
  pops instead of quitting). Service threads run discovery, 10 s probes,
  pairing, wake loops, fetches, and known-hosts persistence.
- Presenter contract: Launch actions carry the host, CancelConnect never
  engages a won race, pad kind/list ride FrameCtx, menu events flow while
  dialing so B can cancel.

Every screen renders to PNG on CPU raster for review
(PF_CONSOLE_DUMP=<dir> cargo test -p pf-console-ui -- --ignored dump).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

crates/pf-console-ui/src/lib.rs

@@ -1,21 +1,39 @@
 //! The Skia console UI (punktfunk-planning `linux-client-rearchitecture.md` §6): an
-//! [`Overlay`] implementation rendering on the PRESENTER's Vulkan device into offscreen
-//! RGBA images the presenter composites as one premultiplied quad. Skia never touches
-//! the swapchain, and nothing here runs while the overlay has nothing to show — the
-//! §6.1 invariants live or die in this crate.
+//! [`Overlay`](pf_presenter::overlay::Overlay) implementation rendering on the
+//! PRESENTER's Vulkan device into offscreen RGBA images the presenter composites as one
+//! premultiplied quad. Skia never touches the swapchain, and nothing here runs while
+//! the overlay has nothing to show — the §6.1 invariants live or die in this crate.
 //!
-//! Milestone 1 (this file): the stats OSD panel + the capture-hint pill — small on
-//! purpose, it proves the whole shared-device pipeline. The gamepad library moves in
-//! next.
+//! The console is a full couch shell now — home (host carousel), the game library
+//! coverflow, settings, add-host, and PIN pairing, with screen transitions, per-pad
+//! button glyphs, and a controller keyboard (suppressed on Steam Deck, where Steam's
+//! own keyboard types through SDL text input) — plus the in-stream chrome: stats OSD,
+//! capture hint, start banner.
 
+#[cfg(any(target_os = "linux", windows))]
+mod anim;
+#[cfg(any(target_os = "linux", windows))]
+mod glyphs;
 #[cfg(any(target_os = "linux", windows))]
 pub mod library;
 #[cfg(any(target_os = "linux", windows))]
-mod library_ui;
+pub mod model;
+#[cfg(any(target_os = "linux", windows))]
+mod screens;
+#[cfg(any(target_os = "linux", windows))]
+mod shell;
 #[cfg(any(target_os = "linux", windows))]
 mod skia_overlay;
+#[cfg(any(target_os = "linux", windows))]
+mod theme;
+#[cfg(any(target_os = "linux", windows))]
+mod widgets;
 
 #[cfg(any(target_os = "linux", windows))]
 pub use library::{LibraryGame, LibraryPhase, LibraryShared};
 #[cfg(any(target_os = "linux", windows))]
-pub use skia_overlay::SkiaOverlay;
+pub use model::{ConsoleBus, ConsoleCmd, ConsoleShared, HostRow, PairPhase, WakeStatus};
+#[cfg(any(target_os = "linux", windows))]
+pub use shell::ConsoleOptions;
+#[cfg(any(target_os = "linux", windows))]
+pub use skia_overlay::{ConsoleEntry, ConsoleHandles, SkiaOverlay};