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/outline_panel/Cargo.toml

@@ -0,0 +1,50 @@
+[package]
+name = "outline_panel"
+version = "0.1.0"
+edition.workspace = true
+publish.workspace = true
+license = "GPL-3.0-or-later"
+
+[lints]
+workspace = true
+
+[lib]
+path = "src/outline_panel.rs"
+doctest = false
+
+[dependencies]
+anyhow.workspace = true
+async-channel.workspace = true
+collections.workspace = true
+db.workspace = true
+editor.workspace = true
+file_icons.workspace = true
+fuzzy.workspace = true
+futures.workspace = true
+gpui.workspace = true
+itertools.workspace = true
+language.workspace = true
+log.workspace = true
+menu.workspace = true
+outline.workspace = true
+project.workspace = true
+search.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+settings.workspace = true
+smallvec.workspace = true
+theme.workspace = true
+theme_settings.workspace = true
+ui.workspace = true
+util.workspace = true
+workspace.workspace = true
+worktree.workspace = true
+zed_actions.workspace = true
+
+[dev-dependencies]
+lsp.workspace = true
+search = { workspace = true, features = ["test-support"] }
+pretty_assertions.workspace = true
+
+[package.metadata.cargo-machete]
+ignored = ["log"]

crates/outline_panel/LICENSE-GPL

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

crates/outline_panel/src/outline_panel_settings.rs

@@ -0,0 +1,81 @@
+use editor::{EditorSettings, ui_scrollbar_settings_from_raw};
+use gpui::{App, Pixels};
+use settings::RegisterSetting;
+pub use settings::{DockSide, Settings, ShowIndentGuides};
+use ui::scrollbars::{ScrollbarVisibility, ShowScrollbar};
+
+#[derive(Debug, Clone, Copy, PartialEq, RegisterSetting)]
+pub struct OutlinePanelSettings {
+    pub button: bool,
+    pub default_width: Pixels,
+    pub dock: DockSide,
+    pub file_icons: bool,
+    pub folder_icons: bool,
+    pub git_status: bool,
+    pub indent_size: f32,
+    pub indent_guides: IndentGuidesSettings,
+    pub auto_reveal_entries: bool,
+    pub auto_fold_dirs: bool,
+    pub scrollbar: ScrollbarSettings,
+    pub expand_outlines_with_depth: usize,
+}
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub struct ScrollbarSettings {
+    /// When to show the scrollbar in the project panel.
+    ///
+    /// Default: inherits editor scrollbar settings
+    pub show: Option<ShowScrollbar>,
+}
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+pub struct IndentGuidesSettings {
+    pub show: ShowIndentGuides,
+}
+
+#[derive(Default)]
+pub(crate) struct OutlinePanelSettingsScrollbarProxy;
+
+impl ScrollbarVisibility for OutlinePanelSettingsScrollbarProxy {
+    fn visibility(&self, cx: &App) -> ShowScrollbar {
+        OutlinePanelSettings::get_global(cx)
+            .scrollbar
+            .show
+            .unwrap_or_else(|| EditorSettings::get_global(cx).scrollbar.show)
+    }
+}
+
+impl Settings for OutlinePanelSettings {
+    fn from_settings(content: &settings::SettingsContent) -> Self {
+        let panel = content.outline_panel.as_ref().unwrap();
+        Self {
+            button: panel.button.unwrap(),
+            default_width: panel.default_width.map(gpui::px).unwrap(),
+            dock: panel.dock.unwrap(),
+            file_icons: panel.file_icons.unwrap(),
+            folder_icons: panel.folder_icons.unwrap(),
+            git_status: panel.git_status.unwrap()
+                && content
+                    .git
+                    .as_ref()
+                    .unwrap()
+                    .enabled
+                    .unwrap()
+                    .is_git_status_enabled(),
+            indent_size: panel.indent_size.unwrap(),
+            indent_guides: IndentGuidesSettings {
+                show: panel.indent_guides.unwrap().show.unwrap(),
+            },
+            auto_reveal_entries: panel.auto_reveal_entries.unwrap(),
+            auto_fold_dirs: panel.auto_fold_dirs.unwrap(),
+            scrollbar: ScrollbarSettings {
+                show: panel
+                    .scrollbar
+                    .unwrap()
+                    .show
+                    .map(ui_scrollbar_settings_from_raw),
+            },
+            expand_outlines_with_depth: panel.expand_outlines_with_depth.unwrap(),
+        }
+    }
+}