fix(generate): fix ESLint errors in Phase 2 split

- rename useStep5Voice.ts -> .tsx (JSX in hook file)
- remove unused variables (presetVoicesLoading, cloneModalOpen, handleCloneSuccess)
- remove unused type imports (TitleConfig, PresetVoiceItem)

apps/web/src/pages/generate/GeneratePage.tsx

@@ -112,7 +112,7 @@ const GeneratePage: React.FC = () => {
   const [selectedClonedVoice, setSelectedClonedVoice] = useState<string>("")
 
   /* ── 预置音色 API（共享：step5 选择、step7 展示） ── */
-  const { data: presetVoicesData, isLoading: presetVoicesLoading } = useQuery({
+  const { data: presetVoicesData } = useQuery({
     queryKey: ["preset-voices"],
     queryFn: fetchPresetVoices,
   })

apps/web/src/pages/generate/components/Step5VoiceSelect.tsx

@@ -72,9 +72,7 @@ const Step5VoiceSelect: React.FC<Step5VoiceSelectProps> = (props) => {
     handleOpenSaveModal,
     handleConfirmSave,
     handleAddTagInModal,
-    cloneModalOpen,
     handleOpenCloneModal,
-    handleCloneSuccess,
     handleSelectClonedVoice,
     VOICE_GENDER_ICON,
     CLONE_STATUS_CONFIG,

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

@@ -4,7 +4,7 @@
  */
 import { useState, useRef, useCallback } from "react"
 import { message } from "antd"
-import type { GeneratedVideo, EditPlanConfig, TitleConfig } from "@/api/template-editor"
+import type { GeneratedVideo, EditPlanConfig } from "@/api/template-editor"
 import {
   generateEditPlan,
   updateEditPlan,

apps/web/src/pages/generate/types.ts

@@ -3,7 +3,6 @@
  */
 
 import type { AssetItem } from "@/api/assets"
-import type { PresetVoiceItem } from "@/api/voices"
 
 /* ── 标题设置 ── */
 export interface TitleSettings {