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>

script/generate-licenses-csv

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+CARGO_ABOUT_VERSION="0.8.2"
+OUTPUT_FILE="${1:-$(pwd)/assets/licenses.csv}"
+TEMPLATE_FILE="script/licenses/template.csv.hbs"
+
+if ! cargo about --version | grep "cargo-about $CARGO_ABOUT_VERSION" 2>&1 > /dev/null; then
+  echo "Installing cargo-about@$CARGO_ABOUT_VERSION..."
+  cargo install "cargo-about@$CARGO_ABOUT_VERSION"
+else
+  echo "cargo-about@$CARGO_ABOUT_VERSION is already installed."
+fi
+
+echo "Generating cargo licenses"
+set -x
+cargo about generate \
+    --fail \
+    -c script/licenses/zed-licenses.toml \
+    $TEMPLATE_FILE \
+    | awk 'NR==1{print;next} NF{print | "sort"}' \
+    > "$OUTPUT_FILE"
+set +x
+
+echo "generate-licenses-csv completed. See $OUTPUT_FILE"