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>

crates/schema_generator/src/main.rs

@@ -0,0 +1,43 @@
+use anyhow::Result;
+use clap::{Parser, ValueEnum};
+use schemars::schema_for;
+use settings::ProjectSettingsContent;
+use theme::IconThemeFamilyContent;
+use theme_settings::ThemeFamilyContent;
+
+#[derive(Parser, Debug)]
+pub struct Args {
+    #[arg(value_enum)]
+    pub schema_type: SchemaType,
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, ValueEnum)]
+#[clap(rename_all = "snake_case")]
+pub enum SchemaType {
+    Theme,
+    IconTheme,
+    Project,
+}
+
+fn main() -> Result<()> {
+    env_logger::init();
+
+    let args = Args::parse();
+
+    match args.schema_type {
+        SchemaType::Theme => {
+            let schema = schema_for!(ThemeFamilyContent);
+            println!("{}", serde_json::to_string_pretty(&schema)?);
+        }
+        SchemaType::IconTheme => {
+            let schema = schema_for!(IconThemeFamilyContent);
+            println!("{}", serde_json::to_string_pretty(&schema)?);
+        }
+        SchemaType::Project => {
+            let schema = schema_for!(ProjectSettingsContent);
+            println!("{}", serde_json::to_string_pretty(&schema)?);
+        }
+    }
+
+    Ok(())
+}