fix: 禁用后台节流，修复软隐藏后快捷键与工具条悬停失效

src/main/main-window.ts

@@ -33,7 +33,12 @@ export function createWindow(): void {
     ...(process.platform === 'linux' ? { icon } : {}),
     webPreferences: {
       preload: join(__dirname, '../preload/index.js'),
-      sandbox: false
+      sandbox: false,
+      // Soft-hide parks the window off-screen, which makes Windows report the
+      // window as occluded; with throttling on, the renderer freezes until the
+      // window is focused again (queued IPC flushes on click, toolbar hover
+      // dwell timers never fire).
+      backgroundThrottling: false
     }
   })
 

src/main/toolbar-window.ts

@@ -35,7 +35,10 @@ export function createToolbarWindow(parent: BrowserWindow): void {
     parent,
     webPreferences: {
       preload: join(__dirname, '../preload/index.js'),
-      sandbox: false
+      sandbox: false,
+      // Hover dwell runs on setTimeout in this renderer; it must not be
+      // throttled while the window is hidden/occluded (see main-window.ts).
+      backgroundThrottling: false
     }
   })
   ownerWindow = parent