logiguard fork: GPUI xdg-activation keyboard-focus serial fix

Single-commit orphan branch: full zed-industries/zed @ 8c74db0 source tree
with a 3-file patch applied (no upstream history).

Patch (crates/gpui_linux/src/linux/wayland/):
  - serial.rs: add SerialKind::KeyboardEnter
  - client.rs: store wl_keyboard.enter serial; add latest_serial_of()
  - window.rs: activate() uses keyboard-enter serial (Mutter focus gate)

Mutter honors window activation only when the token carries the keyboard-
focus serial from wl_keyboard.enter; GPUI used a stale mouse-press serial.
See docs/tray-window-focus-wayland.md in logiguard.

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

crates/gpui/Cargo.toml

@@ -0,0 +1,252 @@
+[package]
+name = "gpui"
+version = "0.2.2"
+edition.workspace = true
+authors = ["Nathan Sobo <nathan@zed.dev>"]
+description = "Zed's GPU-accelerated UI framework"
+repository = "https://github.com/zed-industries/zed"
+publish = true
+license = "Apache-2.0"
+homepage = "https://gpui.rs"
+readme = "README.md"
+keywords = ["desktop", "gui", "immediate"]
+categories = ["gui"]
+
+
+[lints]
+workspace = true
+
+[features]
+default = ["font-kit", "wayland", "x11", "windows-manifest"]
+test-support = [
+    "leak-detection",
+    "collections/test-support",
+    "http_client/test-support",
+    "wayland",
+    "x11",
+    "proptest",
+]
+inspector = ["gpui_macros/inspector"]
+leak-detection = ["backtrace"]
+wayland = [
+    "bitflags",
+]
+x11 = [
+    "scap?/x11",
+]
+screen-capture = [
+    "scap",
+]
+windows-manifest = ["dep:embed-resource"]
+input-latency-histogram = ["dep:hdrhistogram"]
+
+[lib]
+path = "src/gpui.rs"
+doctest = false
+
+[dependencies]
+anyhow.workspace = true
+async-task = "4.7"
+backtrace = { workspace = true, optional = true }
+bitflags = { workspace = true, optional = true }
+
+collections.workspace = true
+ctor.workspace = true
+derive_more.workspace = true
+etagere = "0.2"
+futures.workspace = true
+futures-concurrency.workspace = true
+gpui_macros.workspace = true
+gpui_shared_string.workspace = true
+http_client.workspace = true
+image.workspace = true
+inventory.workspace = true
+itertools.workspace = true
+log.workspace = true
+num_cpus = "1.13"
+parking = "2.0.0"
+parking_lot.workspace = true
+postage.workspace = true
+proptest = { workspace = true, optional = true }
+chrono.workspace = true
+profiling.workspace = true
+rand.workspace = true
+raw-window-handle = "0.6"
+regex.workspace = true
+refineable.workspace = true
+scheduler.workspace = true
+resvg = { version = "0.45.0", default-features = false, features = [
+    "text",
+    "system-fonts",
+    "memmap-fonts",
+    "raster-images"
+] }
+usvg = { version = "0.45.0", default-features = false }
+ttf-parser = "0.25"
+util_macros.workspace = true
+schemars.workspace = true
+seahash = "4.1"
+serde.workspace = true
+serde_json.workspace = true
+slotmap.workspace = true
+smallvec.workspace = true
+async-channel.workspace = true
+stacksafe.workspace = true
+strum.workspace = true
+sum_tree.workspace = true
+taffy = "=0.10.1"
+thiserror.workspace = true
+gpui_util.workspace = true
+hdrhistogram = { workspace = true, optional = true }
+waker-fn = "1.2.0"
+lyon = "1.0"
+pin-project = "1.1.10"
+spin = "0.10.0"
+pollster.workspace = true
+url.workspace = true
+uuid.workspace = true
+web-time.workspace = true
+
+[target.'cfg(target_family = "wasm")'.dependencies]
+getrandom = { version = "0.3.4", features = ["wasm_js"] }
+uuid = { workspace = true, features = ["js"] }
+
+
+[target.'cfg(target_os = "macos")'.dependencies]
+block = "0.1"
+cocoa.workspace = true
+cocoa-foundation.workspace = true
+core-foundation.workspace = true
+core-foundation-sys.workspace = true
+core-graphics = "0.24"
+core-video.workspace = true
+core-text = "21"
+# WARNING: If you change this, you must also publish a new version of zed-font-kit to crates.io
+font-kit = { git = "https://github.com/zed-industries/font-kit", rev = "94b0f28166665e8fd2f53ff6d268a14955c82269", package = "zed-font-kit", version = "0.14.1-zed", optional = true }
+foreign-types = "0.5"
+log.workspace = true
+media.workspace = true
+objc.workspace = true
+objc2 = { version = "0.6", optional = true }
+objc2-metal = { version = "0.3", optional = true }
+mach2.workspace = true
+#TODO: replace with "objc2"
+metal.workspace = true
+
+[target.'cfg(any(target_os = "linux", target_os = "freebsd", target_os = "macos"))'.dependencies]
+pathfinder_geometry = "0.5"
+
+[target.'cfg(any(target_os = "linux", target_os = "freebsd", target_os = "windows"))'.dependencies]
+scap = { workspace = true, optional = true }
+
+
+
+[target.'cfg(target_os = "windows")'.dependencies]
+windows = { version = "0.61", features = ["Win32_Foundation"] }
+
+
+[dev-dependencies]
+backtrace.workspace = true
+collections = { workspace = true, features = ["test-support"] }
+env_logger.workspace = true
+gpui_platform = { workspace = true, features = ["font-kit", "wayland", "x11"] }
+gpui_util = { workspace = true }
+lyon = { version = "1.0", features = ["extra"] }
+proptest = { workspace = true }
+rand.workspace = true
+scheduler = { workspace = true, features = ["test-support"] }
+unicode-segmentation = { workspace = true }
+
+[target.'cfg(not(target_family = "wasm"))'.dev-dependencies]
+http_client = { workspace = true, features = ["test-support"] }
+reqwest_client = { workspace = true, features = ["test-support"] }
+
+[target.'cfg(target_family = "wasm")'.dev-dependencies]
+wasm-bindgen = { workspace = true }
+gpui_web.workspace = true
+
+[build-dependencies]
+embed-resource = { version = "3.0", optional = true }
+
+[target.'cfg(target_os = "macos")'.build-dependencies]
+bindgen = "0.71"
+cbindgen = { version = "0.28.0", default-features = false }
+
+
+
+
+[[example]]
+name = "hello_world"
+path = "examples/hello_world.rs"
+
+[[example]]
+name = "move_entity_between_windows"
+path = "examples/move_entity_between_windows.rs"
+
+[[example]]
+name = "image"
+path = "examples/image/image.rs"
+
+[[example]]
+name = "input"
+path = "examples/input.rs"
+
+[[example]]
+name = "on_window_close_quit"
+path = "examples/on_window_close_quit.rs"
+
+[[example]]
+name = "opacity"
+path = "examples/opacity.rs"
+
+[[example]]
+name = "pattern"
+path = "examples/pattern.rs"
+
+[[example]]
+name = "set_menus"
+path = "examples/set_menus.rs"
+
+[[example]]
+name = "shadow"
+path = "examples/shadow.rs"
+
+[[example]]
+name = "svg"
+path = "examples/svg/svg.rs"
+
+[[example]]
+name = "tab_stop"
+path = "examples/tab_stop.rs"
+
+[[example]]
+name = "text"
+path = "examples/text.rs"
+
+[[example]]
+name = "text_wrapper"
+path = "examples/text_wrapper.rs"
+
+[[example]]
+name = "tree"
+path = "examples/tree.rs"
+
+[[example]]
+name = "uniform_list"
+path = "examples/uniform_list.rs"
+
+[[example]]
+name = "window_shadow"
+path = "examples/window_shadow.rs"
+
+[[example]]
+name = "grid_layout"
+path = "examples/grid_layout.rs"
+
+[[example]]
+name = "list_example"
+path = "examples/list_example.rs"
+
+[[example]]
+name = "mouse_pressure"
+path = "examples/mouse_pressure.rs"