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>

assets/icons/book_copy.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="none"><path stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.2" d="M2.5 10.5V3.643c0-.303.113-.594.315-.808.202-.215.476-.335.762-.335H9.5"/><path stroke="#000" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.2" d="M4.5 9.5h-.667c-.353 0-.692.105-.942.293-.25.187-.391.442-.391.707 0 .265.14.52.39.707.25.188.59.293.943.293H4.5M13.5 11.25H7.577c-.286 0-.56.118-.762.33a1.151 1.151 0 0 0-.315.795m0 0c0 .298.113.585.315.796.202.21.476.329.762.329H13.5v-9H7.577c-.286 0-.56.119-.762.33a1.151 1.151 0 0 0-.315.795v6.75Z"/></svg>