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/project/tests/integration/image_store.rs

@@ -0,0 +1,78 @@
+use fs::FakeFs;
+use gpui::TestAppContext;
+use project::Project;
+use project::ProjectPath;
+use project::image_store::*;
+use serde_json::json;
+use settings::SettingsStore;
+use util::rel_path::rel_path;
+
+pub fn init_test(cx: &mut TestAppContext) {
+    zlog::init_test();
+
+    cx.update(|cx| {
+        let settings_store = SettingsStore::test(cx);
+        cx.set_global(settings_store);
+    });
+}
+
+#[gpui::test]
+async fn test_image_not_loaded_twice(cx: &mut TestAppContext) {
+    init_test(cx);
+    let fs = FakeFs::new(cx.executor());
+
+    fs.insert_tree("/root", json!({})).await;
+    // Create a png file that consists of a single white pixel
+    fs.insert_file(
+        "/root/image_1.png",
+        vec![
+            0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, 0x00, 0x00, 0x00, 0x0D, 0x49, 0x48,
+            0x44, 0x52, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x08, 0x06, 0x00, 0x00,
+            0x00, 0x1F, 0x15, 0xC4, 0x89, 0x00, 0x00, 0x00, 0x0A, 0x49, 0x44, 0x41, 0x54, 0x78,
+            0x9C, 0x63, 0x00, 0x01, 0x00, 0x00, 0x05, 0x00, 0x01, 0x0D, 0x0A, 0x2D, 0xB4, 0x00,
+            0x00, 0x00, 0x00, 0x49, 0x45, 0x4E, 0x44, 0xAE, 0x42, 0x60, 0x82,
+        ],
+    )
+    .await;
+
+    let project = Project::test(fs, ["/root".as_ref()], cx).await;
+
+    let worktree_id = cx.update(|cx| project.read(cx).worktrees(cx).next().unwrap().read(cx).id());
+
+    let project_path = ProjectPath {
+        worktree_id,
+        path: rel_path("image_1.png").into(),
+    };
+
+    let (task1, task2) = project.update(cx, |project, cx| {
+        (
+            project.open_image(project_path.clone(), cx),
+            project.open_image(project_path.clone(), cx),
+        )
+    });
+
+    let image1 = task1.await.unwrap();
+    let image2 = task2.await.unwrap();
+
+    assert_eq!(image1, image2);
+}
+
+#[gpui::test]
+fn test_compute_metadata_from_bytes() {
+    // Single white pixel PNG
+    let png_bytes = vec![
+        0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, 0x00, 0x00, 0x00, 0x0D, 0x49, 0x48, 0x44,
+        0x52, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x08, 0x06, 0x00, 0x00, 0x00, 0x1F,
+        0x15, 0xC4, 0x89, 0x00, 0x00, 0x00, 0x0A, 0x49, 0x44, 0x41, 0x54, 0x78, 0x9C, 0x63, 0x00,
+        0x01, 0x00, 0x00, 0x05, 0x00, 0x01, 0x0D, 0x0A, 0x2D, 0xB4, 0x00, 0x00, 0x00, 0x00, 0x49,
+        0x45, 0x4E, 0x44, 0xAE, 0x42, 0x60, 0x82,
+    ];
+
+    let metadata = ImageItem::compute_metadata_from_bytes(&png_bytes).unwrap();
+
+    assert_eq!(metadata.width, 1);
+    assert_eq!(metadata.height, 1);
+    assert_eq!(metadata.file_size, png_bytes.len() as u64);
+    assert_eq!(metadata.format, image::ImageFormat::Png);
+    assert!(metadata.colors.is_some());
+}