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>

crates/proto/build.rs

@@ -0,0 +1,10 @@
+fn main() {
+    println!("cargo:rerun-if-changed=proto");
+    let mut build = prost_build::Config::new();
+    build
+        .type_attribute(".", "#[derive(serde::Serialize, serde::Deserialize)]")
+        .type_attribute("ProjectPath", "#[derive(Hash, Eq)]")
+        .type_attribute("Anchor", "#[derive(Hash, Eq)]")
+        .compile_protos(&["proto/zed.proto"], &["proto"])
+        .unwrap();
+}