refactor(api): 拆分 duplication.ts 为目录结构（types/duplication/index）

将 99 行的 duplication.ts 拆分为目录化结构：
- types.ts: 类型定义（查重记录/片段/详情/响应）
- duplication.ts: 全部 5 个 API 函数
- index.ts: 统一入口 re-export，保持 @/api/duplication 路径向后兼容

apps/web/src/api/duplication/duplication.ts

@@ -0,0 +1,38 @@
+/**
+ * 查重 API 函数
+ */
+import apiClient from "../client"
+import type { DuplicationDetail, DuplicationRecord, DuplicationUploadResponse } from "./types"
+
+/** 上传视频进行查重 */
+export const uploadForDuplication = async (file: File): Promise<DuplicationUploadResponse> => {
+  const formData = new FormData()
+  formData.append("file", file)
+  const response = await apiClient.post("/duplication/upload", formData, {
+    headers: { "Content-Type": "multipart/form-data" },
+  })
+  return response.data
+}
+
+/** 获取查重记录列表 */
+export const getDuplicationRecords = async (): Promise<DuplicationRecord[]> => {
+  const response = await apiClient.get("/duplication/records")
+  return response.data
+}
+
+/** 获取查重详情 */
+export const getDuplicationDetail = async (recordId: string): Promise<DuplicationDetail> => {
+  const response = await apiClient.get(`/duplication/records/${recordId}`)
+  return response.data
+}
+
+/** 删除查重记录 */
+export const deleteDuplicationRecord = async (recordId: string): Promise<void> => {
+  await apiClient.delete(`/duplication/records/${recordId}`)
+}
+
+/** 重新查重 */
+export const retryDuplication = async (recordId: string): Promise<DuplicationUploadResponse> => {
+  const response = await apiClient.post(`/duplication/records/${recordId}/retry`)
+  return response.data
+}

apps/web/src/api/duplication/index.ts

@@ -0,0 +1,22 @@
+/**
+ * 查重 API — 目录化入口
+ * 保持与原 duplication.ts 相同导出，向后兼容
+ */
+
+// 类型
+export type {
+  DuplicationStatus,
+  DuplicationRecord,
+  DuplicateSegment,
+  DuplicationDetail,
+  DuplicationUploadResponse,
+} from "./types"
+
+// API 函数
+export {
+  uploadForDuplication,
+  getDuplicationRecords,
+  getDuplicationDetail,
+  deleteDuplicationRecord,
+  retryDuplication,
+} from "./duplication"

apps/web/src/api/duplication/types.ts

@@ -1,8 +1,6 @@
 /**
- * 查重 API 模块
- * 提供视频查重相关接口
+ * 查重相关类型定义
  */
-import apiClient from "./client"
 
 /** 查重记录状态 */
 export type DuplicationStatus = "pending" | "processing" | "completed" | "failed"
@@ -62,38 +60,3 @@ export interface DuplicationUploadResponse {
   /** 消息 */
   message: string
 }
-
-// ============ API 函数 ============
-
-/** 上传视频进行查重 */
-export const uploadForDuplication = async (file: File): Promise<DuplicationUploadResponse> => {
-  const formData = new FormData()
-  formData.append("file", file)
-  const response = await apiClient.post("/duplication/upload", formData, {
-    headers: { "Content-Type": "multipart/form-data" },
-  })
-  return response.data
-}
-
-/** 获取查重记录列表 */
-export const getDuplicationRecords = async (): Promise<DuplicationRecord[]> => {
-  const response = await apiClient.get("/duplication/records")
-  return response.data
-}
-
-/** 获取查重详情 */
-export const getDuplicationDetail = async (recordId: string): Promise<DuplicationDetail> => {
-  const response = await apiClient.get(`/duplication/records/${recordId}`)
-  return response.data
-}
-
-/** 删除查重记录 */
-export const deleteDuplicationRecord = async (recordId: string): Promise<void> => {
-  await apiClient.delete(`/duplication/records/${recordId}`)
-}
-
-/** 重新查重 */
-export const retryDuplication = async (recordId: string): Promise<DuplicationUploadResponse> => {
-  const response = await apiClient.post(`/duplication/records/${recordId}/retry`)
-  return response.data
-}