logiguard fork v3: full patch set on verified 8c74db0 tree

Includes prior-session patches (carry forward so the app compiles):
  - crates/gpui/build.rs: cross-compile manifest fix
  - crates/gpui/src/platform.rs: PlatformWindow::activate_with_token trait method
  - crates/gpui/src/window.rs: Window::activate_with_token public API
  - crates/gpui_linux/src/linux/wayland/window.rs: WaylandWindow::activate_with_token + activate() keyboard-serial fix

Plus the focus-serial fix:
  - serial.rs: SerialKind::KeyboardEnter
  - client.rs: store wl_keyboard.enter serial; latest_serial_of()

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

script/flatpak/deps

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+flatpak remote-add --if-not-exists --user flathub https://dl.flathub.org/repo/flathub.flatpakrepo
+
+arch=$(arch)
+fd_version=23.08
+flatpak install -y --user org.freedesktop.Platform/${arch}/${fd_version}
+flatpak install -y --user org.freedesktop.Sdk/${arch}/${fd_version}
+flatpak install -y --user org.freedesktop.Sdk.Extension.rust-stable/${arch}/${fd_version}