feat(windows-client): WOL wait-until-up + IP re-key (Apple/Android parity)

Like the Linux client, the Windows client had WOL send + MAC storage + a Wake
action + fire-and-forget auto-wake, but no poll-until-up + IP re-key. Add the
polished flow (mirrors Apple HostWaker + the request_access screen pattern):

- connect::wake_and_connect — send the magic packet, show a cancelable
  Screen::Waking busy page, poll discovery::browse() until the host reappears
  (re-sending every 6 s, 90 s budget), then dial; re-key the saved host
  (KnownHosts::upsert) if it woke on a new IP.
- Screen::Waking + waking_page, routed in app/mod.rs (mirrors RequestAccess).
- the saved-host tile routes an offline-with-MAC tap to wake_and_connect;
  MENU_WAKE stays a pure send-only button.

Reviewed against the request_access reference — DiscoveredHost/KnownHost/Target
types, the widgets, .call()/.lock(), and the initiate signature all match;
compile-verified by Windows CI (no local Windows toolchain).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

clients/windows/src/app/hosts.rs

@@ -2,7 +2,7 @@
 //! tiles in a responsive grid, with a per-host "…" menu (connect / speed test / rename /
 //! forget) and a manual connect entry — the same card layout as the Linux and Apple clients.
 
-use super::connect::initiate;
+use super::connect::{initiate, wake_and_connect};
 use super::speed::SpeedState;
 use super::style::*;
 use super::{Screen, Svc, Target};
@@ -386,12 +386,14 @@ pub(crate) fn hosts_page(props: &HostsProps, cx: &mut RenderCx) -> Element {
                 ),
                 Some(menu),
                 Some(Box::new(move || {
-                    // Auto-wake an offline saved host before connecting; the connect's own
-                    // retry/timeout gives a woken host time to come up.
+                    // Offline saved host with a known MAC: wake it and WAIT for it to reappear on
+                    // the network (re-sending periodically) before dialing — a cold box boots far
+                    // slower than a connect will sit. An online host dials straight away.
                     if can_wake {
-                        crate::wol::wake(&target.mac, target.addr.parse().ok());
+                        wake_and_connect(&ctx2, target.clone(), &ss, &st);
+                    } else {
+                        initiate(&ctx2, target.clone(), &ss, &st);
                     }
-                    initiate(&ctx2, target.clone(), &ss, &st)
                 })),
             ));
         }