logiguard fork v2: patched GPUI on verified 8c74db0 tree

Rebuilt from the exact zed-industries/zed @ 8c74db00c4053d6c0a9037863d7bd048658da4ca
tree (previous orphan was based on a stale/wrong fetch). Same 3-file patch:
  - 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)

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

script/determine-release-channel.ps1

@@ -0,0 +1,37 @@
+$ErrorActionPreference = "Stop"
+
+if (-not $env:GITHUB_ACTIONS) {
+    Write-Error "Error: This script must be run in a GitHub Actions environment"
+    exit 1
+}
+
+if (-not $env:GITHUB_REF) {
+    Write-Error "Error: GITHUB_REF is not set"
+    exit 1
+}
+
+$version = & "script/get-crate-version.ps1" "zed"
+$channel = Get-Content "crates/zed/RELEASE_CHANNEL"
+
+Write-Host "Publishing version: $version on release channel $channel"
+Write-Output "RELEASE_CHANNEL=$channel" >> $env:GITHUB_ENV
+Write-Output "RELEASE_VERSION=$version" >> $env:GITHUB_ENV
+
+$expectedTagName = ""
+switch ($channel) {
+    "stable" {
+        $expectedTagName = "v$version"
+    }
+    "preview" {
+        $expectedTagName = "v$version-pre"
+    }
+    default {
+        Write-Error "can't publish a release on channel $channel"
+        exit 1
+    }
+}
+
+if ($env:GITHUB_REF_NAME -ne $expectedTagName) {
+    Write-Error "invalid release tag $($env:GITHUB_REF_NAME). expected $expectedTagName"
+    exit 1
+}