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/zlog_settings/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "zlog_settings"
+version = "0.1.0"
+edition.workspace = true
+publish.workspace = true
+license = "GPL-3.0-or-later"
+
+[lints]
+workspace = true
+
+[lib]
+path = "src/zlog_settings.rs"
+
+[features]
+default = []
+
+[dependencies]
+gpui.workspace = true
+collections.workspace = true
+settings.workspace = true
+zlog.workspace = true

crates/zlog_settings/LICENSE-GPL

@@ -0,0 +1 @@
+../../LICENSE-GPL

crates/zlog_settings/src/zlog_settings.rs

@@ -0,0 +1,30 @@
+//! # zlog_settings
+use collections::HashMap;
+
+use gpui::App;
+use settings::{RegisterSetting, Settings, SettingsStore};
+
+pub fn init(cx: &mut App) {
+    cx.observe_global::<SettingsStore>(|cx| {
+        let zlog_settings = ZlogSettings::get_global(cx);
+        zlog::filter::refresh_from_settings(&zlog_settings.scopes);
+    })
+    .detach();
+}
+
+#[derive(Clone, Debug, RegisterSetting)]
+pub struct ZlogSettings {
+    /// A map of log scopes to the desired log level.
+    /// Useful for filtering out noisy logs or enabling more verbose logging.
+    ///
+    /// Example: {"log": {"client": "warn"}}
+    pub scopes: HashMap<String, String>,
+}
+
+impl Settings for ZlogSettings {
+    fn from_settings(content: &settings::SettingsContent) -> Self {
+        ZlogSettings {
+            scopes: content.log.clone().unwrap(),
+        }
+    }
+}