fix(window): let close blur the focused field during inline rename

Minimize and maximize still suppress mousedown focus so restore keeps the terminal focused. Close does not, so session and host-group renames can commit on blur.

Co-authored-by: 陈大猫 <binaricat@users.noreply.github.com>

components/TopTabs.test.ts

@@ -294,6 +294,26 @@ test("session close button double click stays on the close button", () => {
   assert.match(topTabItemsSource, /onDoubleClick=\{stopCloseButtonDoubleClickPropagation\}/);
 });
 
+test("main window controls keep mouse presses from taking focus", () => {
+  const windowControlsSource = topTabItemsSource.slice(
+    topTabItemsSource.indexOf("export const WindowControls"),
+    topTabItemsSource.indexOf("WindowControls.displayName"),
+  );
+
+  assert.match(
+    windowControlsSource,
+    /const preventWindowControlFocus: React\.MouseEventHandler<HTMLButtonElement> = \(event\) => \{\s*event\.preventDefault\(\);\s*\};/,
+  );
+  assert.equal(windowControlsSource.match(/onMouseDown=\{preventWindowControlFocus\}/g)?.length, 2);
+  const closeButton = windowControlsSource.match(
+    /<button type="button" className=\{closeControlClassName\}[^>]*>/,
+  )?.[0] ?? "";
+  assert.equal(closeButton.includes("onMouseDown"), false);
+  assert.match(windowControlsSource, /onClick=\{handleMinimize\}/);
+  assert.match(windowControlsSource, /onClick=\{handleMaximize\}/);
+  assert.match(windowControlsSource, /onClick=\{handleClose\}/);
+});
+
 test("session top tab label only shows the host label for ssh sessions", () => {
   assert.equal(
     formatSessionTopTabLabel({

components/top-tabs/TopTabItems.tsx

@@ -310,13 +310,19 @@ export const WindowControls: React.FC = memo(() => {
 
   const controlClassName = 'window-control-btn app-no-drag';
   const closeControlClassName = 'window-control-btn window-control-btn--close app-no-drag';
+  // Mouse press would move DOM focus onto minimize/maximize. After restore
+  // that leaves the terminal textarea unfocused, so keystrokes do nothing.
+  // Close skips this so the active field still blurs (inline rename commits on blur).
+  const preventWindowControlFocus: React.MouseEventHandler<HTMLButtonElement> = (event) => {
+    event.preventDefault();
+  };
 
   return (
     <div className="ml-2 flex h-7 items-center overflow-visible app-no-drag">
-      <button type="button" className={controlClassName} onClick={handleMinimize}>
+      <button type="button" className={controlClassName} onMouseDown={preventWindowControlFocus} onClick={handleMinimize}>
         <Minus size={16} />
       </button>
-      <button type="button" className={controlClassName} onClick={handleMaximize}>
+      <button type="button" className={controlClassName} onMouseDown={preventWindowControlFocus} onClick={handleMaximize}>
         {isMaximized ? <Copy size={14} /> : <Square size={14} />}
       </button>
       <button type="button" className={closeControlClassName} onClick={handleClose}>