Port · Build: Zed's gpui at 1a28cff

gpui and gpui_platform now come from Zed's repo by git at 1a28cff,
the code gpui-pre 0.3.7 republishes, so the gallery can later build
for the browser. gpui takes stacker, as 0.2.2 always did, and
gpui_platform takes font-kit, without which macOS draws no text;
runtime_shaders moves to gpui_platform.

The API moved: focus, blur and Tab steps take cx, Corner is Anchor,
shaped lines paint with an alignment, defer_draw takes a content
mask, the inspector registers a factory, async updates return their
value, and wrapped lines are shared, not cloned. Updates through a
window context go through the window, so a closed window still ends
them as it did.

Where the new gpui behaves differently, Ely keeps its old intent.
Holds and reveals under a resting pointer survive typing through
gpui's input-modality-independent hover; previews the keyboard also
moves keep the default, and the calendar's leave ignores a key press.
Enter reaches a button inside the code editor, since gpui now arms a
key click on the press. The event logger skips a lone modifier. A
video and an image grid keep their shape in a flex column under
taffy 0.13, as a picture does.

AGENTS.md records the new stack and the rules this port changes; the
rest of the old gpui and taffy rules are re-tested in T44c.

src/project/tracker.rs

@@ -104,7 +104,8 @@ impl RenderOnce for TimeTracker {
                 cx.spawn_in(window, async move |ticker, cx| {
                     loop {
                         cx.background_executor().timer(Duration::from_secs(1)).await;
-                        if ticker.update(cx, |_, cx| cx.notify()).is_err() {
+                        let ticked = cx.update(|_, cx| ticker.update(cx, |_, cx| cx.notify()));
+                        if ticked.and_then(|inner| inner).is_err() {
                             return;
                         }
                     }
@@ -129,7 +130,7 @@ impl RenderOnce for TimeTracker {
                 let now = cx.background_executor().now();
                 log::info!("time tracker {id:?}: start {task}");
                 field.update(cx, |input, cx| input.set_text(String::new(), cx));
-                window.focus(&action);
+                window.focus(&action, cx);
                 if let Some(on_start) = &on_start {
                     on_start(&task, now, window, cx);
                 }
@@ -144,7 +145,7 @@ impl RenderOnce for TimeTracker {
             Rc::new(move |window, cx| {
                 let now = cx.background_executor().now();
                 log::info!("time tracker {id:?}: stop");
-                window.focus(&typing);
+                window.focus(&typing, cx);
                 if let Some(on_stop) = &on_stop {
                     on_stop(now, window, cx);
                 }