feat(apple): wake-until-up overlay + host edit with MAC prefill

- HostWaker + WakeOverlay: after sending the Wake-on-LAN packet, wait until the host
  is really back (resend + mDNS poll, timeout, cancel/retry) before connecting.
  macOS-only in practice — WoL stays gated off on iOS/tvOS pending the multicast
  entitlement.
- Add/Edit host sheet gains a Wake-on-LAN MAC field, prefilled from the stored MAC
  or the live mDNS advert; parseMacs validates aa:bb:cc:dd:ee:ff.
- Gamepad chrome/home and glass-style polish.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

clients/apple/Sources/PunktfunkClient/Home/WakeOverlay.swift

@@ -0,0 +1,84 @@
+// The "Waking <host>…" modal shown while HostWaker brings a sleeping host back — a spinner + a
+// live elapsed counter, escalating to a retry/cancel prompt on timeout. Presented over BOTH the
+// touch and gamepad home (a wake only ever starts on macOS today, where WoL is ungated), and it
+// drives from either a pointer (the buttons) or a controller (B cancels, A retries once timed out).
+
+import PunktfunkKit
+import SwiftUI
+
+struct WakeOverlay: View {
+    @ObservedObject var waker: HostWaker
+
+    var body: some View {
+        if let w = waker.waking {
+            ZStack {
+                // Dim + swallow input to the home behind it.
+                Rectangle().fill(.black.opacity(0.6)).ignoresSafeArea()
+                    .contentShape(Rectangle())
+                    .onTapGesture {}
+                card(w)
+                    .frame(maxWidth: 380)
+                    .padding(28)
+                    .consoleGlass(RoundedRectangle(cornerRadius: 22, style: .continuous))
+                    .overlay(
+                        RoundedRectangle(cornerRadius: 22, style: .continuous)
+                            .strokeBorder(.white.opacity(0.12), lineWidth: 1))
+                    .padding(40)
+            }
+            .environment(\.colorScheme, .dark)
+            .transition(.opacity)
+            #if os(iOS) || os(macOS)
+            .background { WakeControllerInput(waker: waker) }
+            #endif
+        }
+    }
+
+    @ViewBuilder private func card(_ w: HostWaker.Waking) -> some View {
+        VStack(spacing: 14) {
+            if w.timedOut {
+                Image(systemName: "moon.zzz.fill")
+                    .font(.system(size: 34)).foregroundStyle(.white.opacity(0.85))
+                Text("\(w.hostName) didn't wake")
+                    .font(.geist(19, .bold, relativeTo: .title3)).foregroundStyle(.white)
+                Text("It may still be booting, or it's powered off / off this network.")
+                    .font(.geist(13, relativeTo: .caption)).foregroundStyle(.white.opacity(0.6))
+                    .multilineTextAlignment(.center)
+                HStack(spacing: 12) {
+                    Button("Cancel") { waker.cancel() }.buttonStyle(.bordered)
+                    Button("Try Again") { waker.retry() }.glassProminentButtonStyle()
+                }
+                .padding(.top, 6)
+            } else {
+                ProgressView().controlSize(.large).tint(.white)
+                Text("Waking \(w.hostName)…")
+                    .font(.geist(19, .bold, relativeTo: .title3)).foregroundStyle(.white)
+                Text("Waiting for it to come online · \(w.seconds)s")
+                    .font(.geistFixed(13)).foregroundStyle(.white.opacity(0.6))
+                    .monospacedDigit()
+                Button(w.connectsAfter ? "Cancel" : "Stop Waiting") { waker.cancel() }
+                    .buttonStyle(.bordered)
+                    .padding(.top, 6)
+            }
+        }
+    }
+}
+
+#if os(iOS) || os(macOS)
+/// Controller binding for the overlay: B cancels; A retries once it has timed out. A zero-size
+/// backing view owning a `GamepadMenuInput` for the overlay's lifetime (the home carousel/list is
+/// gated inactive while a wake is up, so nothing else is consuming the pad).
+private struct WakeControllerInput: View {
+    @ObservedObject var waker: HostWaker
+    @State private var input = GamepadMenuInput(manager: .shared)
+
+    var body: some View {
+        Color.clear
+            .onAppear {
+                input.onBack = { waker.cancel() }
+                input.onConfirm = { if waker.waking?.timedOut == true { waker.retry() } }
+                input.start()
+            }
+            .onDisappear { input.stop() }
+    }
+}
+#endif