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>

assets/settings/initial_user_settings.json

@@ -0,0 +1,17 @@
+// Zed settings
+//
+// For information on how to configure Zed, see the Zed
+// documentation: https://zed.dev/docs/configuring-zed
+//
+// To see all of Zed's default settings without changing your
+// custom settings, run `zed: open default settings` from the
+// command palette (cmd-shift-p / ctrl-shift-p)
+{
+  "ui_font_size": 16,
+  "buffer_font_size": 15,
+  "theme": {
+    "mode": "system",
+    "light": "One Light",
+    "dark": "One Dark",
+  },
+}