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/schema_generator/README.md

@@ -0,0 +1,12 @@
+# Zed Schema Generator
+
+Prints various Zed schemas to stdout.
+
+## Usage
+
+```sh
+cargo run -p schema_generator -- --help
+
+cargo run -p schema_generator -- theme
+cargo run -p schema_generator -- icon_theme
+```