fix(widgets): isolate autocomplete text cleanup

vue-widgets/tests/unit/vueWidgetCleanup.test.ts

@@ -0,0 +1,38 @@
+import { describe, expect, it, vi } from 'vitest'
+import { createVueWidgetCleanup } from '@/vue-widget-cleanup'
+
+describe('createVueWidgetCleanup', () => {
+  it('cleans up only the Vue app bound to the widget remove handler', () => {
+    const firstCleanup = vi.fn()
+    const secondCleanup = vi.fn()
+    const firstApp = { unmount: vi.fn() }
+    const secondApp = { unmount: vi.fn() }
+
+    const removeFirst = createVueWidgetCleanup(firstApp as any, firstCleanup)
+    const removeSecond = createVueWidgetCleanup(secondApp as any, secondCleanup)
+
+    removeFirst()
+
+    expect(firstApp.unmount).toHaveBeenCalledTimes(1)
+    expect(firstCleanup).toHaveBeenCalledTimes(1)
+    expect(secondApp.unmount).not.toHaveBeenCalled()
+    expect(secondCleanup).not.toHaveBeenCalled()
+
+    removeSecond()
+
+    expect(secondApp.unmount).toHaveBeenCalledTimes(1)
+    expect(secondCleanup).toHaveBeenCalledTimes(1)
+  })
+
+  it('is idempotent when ComfyUI calls the remove handler more than once', () => {
+    const cleanup = vi.fn()
+    const app = { unmount: vi.fn() }
+    const remove = createVueWidgetCleanup(app as any, cleanup)
+
+    remove()
+    remove()
+
+    expect(app.unmount).toHaveBeenCalledTimes(1)
+    expect(cleanup).toHaveBeenCalledTimes(1)
+  })
+})