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>

.github/workflows/compare_perf.yml

@@ -0,0 +1,84 @@
+# Generated from xtask::workflows::compare_perf
+# Rebuild with `cargo xtask workflows`.
+name: compare_perf
+on:
+  workflow_dispatch:
+    inputs:
+      head:
+        description: head
+        required: true
+        type: string
+      base:
+        description: base
+        required: true
+        type: string
+      crate_name:
+        description: crate_name
+        type: string
+        default: ''
+jobs:
+  run_perf:
+    runs-on: namespace-profile-16x32-ubuntu-2204
+    steps:
+    - name: steps::checkout_repo
+      uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd
+      with:
+        clean: false
+    - name: steps::setup_cargo_config
+      run: |
+        mkdir -p ./../.cargo
+        cp ./.cargo/ci-config.toml ./../.cargo/config.toml
+    - name: steps::setup_linux
+      run: ./script/linux
+    - name: steps::download_wasi_sdk
+      run: ./script/download-wasi-sdk
+    - name: compare_perf::run_perf::install_hyperfine
+      uses: taiki-e/install-action@b4f2d5cb8597b15997c8ede873eb6185efc5f0ad
+    - name: steps::git_checkout
+      run: git fetch origin "$REF_NAME" && git checkout "$REF_NAME"
+      env:
+        REF_NAME: ${{ inputs.base }}
+    - name: compare_perf::run_perf::cargo_perf_test
+      run: |2-
+
+                    if [ -n "$CRATE_NAME" ]; then
+                        cargo perf-test -p "$CRATE_NAME" -- --json="$REF_NAME";
+                    else
+                        cargo perf-test -p vim -- --json="$REF_NAME";
+                    fi
+      env:
+        REF_NAME: ${{ inputs.base }}
+        CRATE_NAME: ${{ inputs.crate_name }}
+    - name: steps::git_checkout
+      run: git fetch origin "$REF_NAME" && git checkout "$REF_NAME"
+      env:
+        REF_NAME: ${{ inputs.head }}
+    - name: compare_perf::run_perf::cargo_perf_test
+      run: |2-
+
+                    if [ -n "$CRATE_NAME" ]; then
+                        cargo perf-test -p "$CRATE_NAME" -- --json="$REF_NAME";
+                    else
+                        cargo perf-test -p vim -- --json="$REF_NAME";
+                    fi
+      env:
+        REF_NAME: ${{ inputs.head }}
+        CRATE_NAME: ${{ inputs.crate_name }}
+    - name: compare_perf::run_perf::compare_runs
+      run: cargo perf-compare --save=results.md "$BASE" "$HEAD"
+      env:
+        BASE: ${{ inputs.base }}
+        HEAD: ${{ inputs.head }}
+    - name: '@actions/upload-artifact results.md'
+      uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4
+      with:
+        name: results.md
+        path: results.md
+        if-no-files-found: error
+    - name: steps::cleanup_cargo_config
+      if: always()
+      run: |
+        rm -rf ./../.cargo
+defaults:
+  run:
+    shell: bash -euxo pipefail {0}