feat: refine UI, improve UX, optimize the analysis pipeline, and add character standing positions

tests/unit/components/ai-data-modal-preview-pane.test.ts

@@ -0,0 +1,34 @@
+import { describe, expect, it, vi } from 'vitest'
+import { copyPreviewJsonText } from '@/app/[locale]/workspace/[projectId]/modes/novel-promotion/components/storyboard/AIDataModalPreviewPane'
+
+describe('AIDataModalPreviewPane copy helper', () => {
+  it('falls back to execCommand when clipboard api rejects', async () => {
+    const writeText = vi.fn(async () => {
+      throw new Error('clipboard denied')
+    })
+    const appendChild = vi.fn()
+    const removeChild = vi.fn()
+    const select = vi.fn()
+    const textarea = {
+      value: '',
+      style: {} as Record<string, string>,
+      select,
+    }
+
+    vi.stubGlobal('navigator', { clipboard: { writeText } })
+    vi.stubGlobal('document', {
+      body: {
+        appendChild,
+        removeChild,
+      },
+      createElement: vi.fn(() => textarea),
+      execCommand: vi.fn(() => true),
+    })
+
+    await expect(copyPreviewJsonText('{"a":1}')).resolves.toBeUndefined()
+
+    expect(writeText).toHaveBeenCalledWith('{"a":1}')
+    expect(appendChild).toHaveBeenCalledWith(textarea)
+    expect(select).toHaveBeenCalled()
+  })
+})