test: 修复generate-video smoke test的过期导入

代码重构后phase/errorUtils/voiceConfig的导出变了，
smoke test导入的三个符号已不存在，导致Frontend Unit Tests失败。

更新为实际存在的导出：
- phase: getNextPhase/PHASE_ORDER → getGenerationPhase
- errorUtils: extractErrorMessage → extractBackendError
- voiceConfig: getDefaultVoiceConfig → buildVoiceConfig

同时增加函数调用验证，确保不仅能导入还能执行。

apps/web/src/test/pages/generate/useGenerateVideo.test.ts

@@ -8,14 +8,17 @@ import type {
   UseGenerateVideoProps,
   GenerationPhase,
 } from "@/pages/generate/hooks/generate-video/types"
-import { getNextPhase, PHASE_ORDER } from "@/pages/generate/hooks/generate-video/phase"
-import { extractErrorMessage } from "@/pages/generate/hooks/generate-video/errorUtils"
-import { getDefaultVoiceConfig } from "@/pages/generate/hooks/generate-video/voiceConfig"
+import { getGenerationPhase } from "@/pages/generate/hooks/generate-video/phase"
+import { extractBackendError } from "@/pages/generate/hooks/generate-video/errorUtils"
+import { buildVoiceConfig } from "@/pages/generate/hooks/generate-video/voiceConfig"
 
 describe("generate-video module smoke test", () => {
   it("should load all generate-video modules", () => {
-    expect(PHASE_ORDER.length).toBeGreaterThan(0)
-    expect(typeof extractErrorMessage).toBe("function")
-    expect(typeof getDefaultVoiceConfig).toBe("function")
+    expect(typeof getGenerationPhase).toBe("function")
+    expect(typeof extractBackendError).toBe("function")
+    expect(typeof buildVoiceConfig).toBe("function")
+    const phase = getGenerationPhase(50)
+    expect(phase.label).toBeTruthy()
+    expect(phase.icon).toBeTruthy()
   })
 })