feat: add asset library download button, fix env ports, update README, optimize semantics, support multi-image reading, and allow voiceover analysis for silent segments

tests/unit/worker/voice-line-parse-helpers.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it } from 'vitest'
+import { parseVoiceLinesJson as parseStoryboardVoiceLinesJson } from '@/lib/workers/handlers/script-to-storyboard-helpers'
+import { parseVoiceLinesJson as parseStandaloneVoiceLinesJson } from '@/lib/workers/handlers/voice-analyze-helpers'
+
+describe('voice line parse helpers', () => {
+  it('script-to-storyboard parser accepts explicit empty array', () => {
+    expect(parseStoryboardVoiceLinesJson('[]')).toEqual([])
+  })
+
+  it('script-to-storyboard parser rejects non-object array payload', () => {
+    expect(() => parseStoryboardVoiceLinesJson('[1,2]')).toThrow('voice_analyze: invalid payload')
+  })
+
+  it('voice-analyze parser accepts explicit empty array', () => {
+    expect(parseStandaloneVoiceLinesJson('[]')).toEqual([])
+  })
+
+  it('voice-analyze parser rejects non-object array payload', () => {
+    expect(() => parseStandaloneVoiceLinesJson('[1,2]')).toThrow('Invalid voice lines data structure')
+  })
+})