feat(apple): the gamepad UI comes to tvOS - focus-driven, with real session controls

The console UI now runs on tvOS through the NATIVE focus engine: carousel
cards and settings rows are focusable Buttons (Siri Remote and pads both
navigate; imperative scrollTo replaces the drop-prone scrollPosition binding),
while iOS/macOS keep the 60 Hz poll untouched - on tvOS it carries only what
focus has no concept of: X/Y screen actions and left/right value adjust with
the poll's dominant-axis feel (onMoveCommand proved input-source-dependent:
keyboard intercepted, pad dpad not -> double steps). Text entry uses the
system fullscreen keyboard (TVTextEntry); pairing + library present as covers
under the launcher; the game library defaults ON; settings values slide a
quiet 14 pt in the step's direction.

Session controls: controller/remote input routes EXCLUSIVELY through
GameController during a stream (GCEventViewController, interaction disabled) -
a pad's B no longer doubles as a UIKit menu press that ended sessions
mid-game. Deliberate exits only: the cross-client escape chord (hold
L1+R1+Start+Select 1.5 s - pf-client-core's contract, now implemented on all
Apple platforms) and holding the remote's Back >= 1 s; the start-of-stream
banner (now also on tvOS) teaches both. The Siri Remote's touch surface
drives the host pointer - press = left click, Play/Pause = right click,
release-tail jumps gated so motion stays truly relative.

tvOS 26 regressions fixed at the root: the app-wide brand tint rendered every
unfocused control as a blank pill (tint dropped on tvOS) and the 17 pt root
font shrank the whole platform (29 pt there), plus 10-foot sizing across host
cards, the gamepad screens, and the stats HUD (whose misleading "Press Menu"
hint is gone). Acknowledgements scrolls by focus-sized chunks and Menu pops
instead of suspending; full-width focusSections make the home actions
reachable from any column. The presenter defaults to stage-3 glass pacing on
tvOS (a 60 Hz panel fed a 60 fps stream is the sticky-FIFO worst case behind
the 50 ms display stage) and is pickable from the gamepad settings; HDR
capability advertises from AVPlayer.eligibleForHDRPlayback instead of the
current mode's EDR headroom, so an SDR home screen no longer hides an HDR TV.

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

clients/apple/Sources/PunktfunkClient/Support/GlassStyle.swift

@@ -82,20 +82,36 @@ private struct ConsoleGlass<S: Shape>: ViewModifier {
     var interactive = false
 
     func body(content: Content) -> some View {
-        if #available(iOS 26, macOS 26, tvOS 26, *) {
+        #if os(tvOS)
+        // ALWAYS the material fallback on tvOS: the gamepad settings list is 15+ of these
+        // surfaces, and live Liquid Glass per row made the whole screen visibly laggy on the
+        // Apple TV's GPU (same class of call GlassProminentButton already makes — glass fights
+        // the 10-foot platform). The tint rides an overlay so the focused row keeps its wash.
+        content.background {
+            shape.fill(.ultraThinMaterial)
+                .environment(\.colorScheme, .dark)
+                .overlay {
+                    if let tint { shape.fill(tint) }
+                }
+        }
+        #else
+        if #available(iOS 26, macOS 26, *) {
             content.glassEffect(glass, in: shape)
         } else {
             content.background { shape.fill(.ultraThinMaterial).environment(\.colorScheme, .dark) }
         }
+        #endif
     }
 
-    @available(iOS 26, macOS 26, tvOS 26, *)
+    #if !os(tvOS)
+    @available(iOS 26, macOS 26, *)
     private var glass: Glass {
         var g: Glass = .regular
         if let tint { g = g.tint(tint) }
         if interactive { g = g.interactive() }
         return g
     }
+    #endif
 }
 
 extension View {