diff --git a/build.gradle.kts b/build.gradle.kts
index c0bdd33..dd0afef 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -27,6 +27,7 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-web")
     implementation("org.aspectj:aspectjweaver")
     implementation("org.springframework.security:spring-security-crypto")
+    implementation("org.springdoc:springdoc-openapi-starter-webmvc-ui:3.0.3")
     implementation("org.bouncycastle:bcprov-jdk18on:1.84")
     implementation("com.mysql:mysql-connector-j")
     implementation("com.baomidou:mybatis-plus-spring-boot4-starter:3.5.15")
diff --git a/src/main/kotlin/com/msksbr/bookmgr/config/GlobalExceptionHandler.kt b/src/main/kotlin/com/msksbr/bookmgr/config/GlobalExceptionHandler.kt
index 1270a51..21460fb 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/config/GlobalExceptionHandler.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/config/GlobalExceptionHandler.kt
@@ -3,10 +3,10 @@ package com.msksbr.bookmgr.config
 import com.msksbr.bookmgr.script.log
 import org.springframework.web.bind.annotation.ExceptionHandler
 import org.springframework.web.bind.annotation.RestControllerAdvice
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
 
 /*
-* 全局异常处理，将未捕获异常统一转为 Result 格式，避免泄露堆栈信息
+* 全局异常处理，将未捕获异常统一转为 ApiResult 格式，避免泄露堆栈信息
 *
 * 返回格式：
 *   {"code":500,"message":"Internal server error"}
@@ -14,8 +14,8 @@ import com.msksbr.bookmgr.template.Result
 @RestControllerAdvice
 class GlobalExceptionHandler {
     @ExceptionHandler(Exception::class)
-    fun handle(ex: Exception): Result<Any?>{
+    fun handle(ex: Exception): ApiResult<Any?>{
         log.error("[Global] unhandled exception: {}", ex.message)
-        return Result.error("Internal server error")
+        return ApiResult.error("Internal server error")
     }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/com/msksbr/bookmgr/config/RequireRoleAspect.kt b/src/main/kotlin/com/msksbr/bookmgr/config/RequireRoleAspect.kt
index afad2de..ef08953 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/config/RequireRoleAspect.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/config/RequireRoleAspect.kt
@@ -2,7 +2,7 @@ package com.msksbr.bookmgr.config
 
 import com.msksbr.bookmgr.annotation.RequireRole
 import com.msksbr.bookmgr.script.log
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
 import org.aspectj.lang.ProceedingJoinPoint
 import org.aspectj.lang.annotation.Around
 import org.aspectj.lang.annotation.Aspect
@@ -44,7 +44,7 @@ class RequireRoleAspect(
 
         if (username == null) {
             log.warn("[AUDIT] unauthenticated | ip={} | path={} | required={}", ip, path, requireRole.role)
-            return Result.unauthorized("Missing or invalid token")
+            return ApiResult.unauthorized<Any?>("Missing or invalid token")
         }
 
         val allowedRoles = rolePermissions[role] ?: emptySet()
@@ -53,7 +53,7 @@ class RequireRoleAspect(
                 "[AUDIT] access denied | user={} | ip={} | path={} | required={} | actual={}",
                 username, ip, path, requireRole.role, role
             )
-            return Result.forbidden("Access denied: insufficient permissions")
+            return ApiResult.forbidden<Any?>("Access denied: insufficient permissions")
         }
         log.info("[AUDIT] access allowed | user={} | ip={} | path={} | role={}",
             username, ip, path, role)
diff --git a/src/main/kotlin/com/msksbr/bookmgr/controller/AdminBookController.kt b/src/main/kotlin/com/msksbr/bookmgr/controller/AdminBookController.kt
index 2c84841..1985ddc 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/controller/AdminBookController.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/controller/AdminBookController.kt
@@ -6,7 +6,7 @@ import com.msksbr.bookmgr.dto.BookAddDto
 import com.msksbr.bookmgr.dto.BookUpdateDto
 import com.msksbr.bookmgr.script.log
 import com.msksbr.bookmgr.service.AdminBookService
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
 import jakarta.servlet.http.HttpServletRequest
 import jakarta.validation.Valid
 import org.springframework.web.bind.annotation.*
@@ -35,8 +35,13 @@ class AdminBookController(private val adminBookService: AdminBookService, privat
         bookAddDto: BookAddDto,
         request: HttpServletRequest,
         @RequestAttribute(required = false) username: String?
-    ): Result<Any?> {
-        log.info("[AdminBook] add: user={}, name={}, author={}", username ?: "guest", bookAddDto.name, bookAddDto.author)
+    ): ApiResult<String> {
+        log.info(
+            "[AdminBook] add: user={}, name={}, author={}",
+            username ?: "guest",
+            bookAddDto.name,
+            bookAddDto.author
+        )
         log.info("[AdminBook] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return adminBookService.addBook(bookAddDto)
     }
@@ -50,7 +55,7 @@ class AdminBookController(private val adminBookService: AdminBookService, privat
         bookUpdateDto: BookUpdateDto,
         request: HttpServletRequest,
         @RequestAttribute(required = false) username: String?
-    ): Result<Any?> {
+    ): ApiResult<String> {
         log.info("[AdminBook] update: user={}, id={}", username ?: "guest", id)
         log.info("[AdminBook] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return adminBookService.updateBook(id, bookUpdateDto)
@@ -62,7 +67,7 @@ class AdminBookController(private val adminBookService: AdminBookService, privat
         id: Long,
         request: HttpServletRequest,
         @RequestAttribute(required = false) username: String?
-    ): Result<Any?> {
+    ): ApiResult<String> {
         log.info("[AdminBook] delete: user={}, id={}", username ?: "guest", id)
         log.info("[AdminBook] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return adminBookService.deleteBook(id)
@@ -75,7 +80,7 @@ class AdminBookController(private val adminBookService: AdminBookService, privat
         stock: Int,
         request: HttpServletRequest,
         @RequestAttribute(required = false) username: String?
-    ): Result<Any?> {
+    ): ApiResult<String> {
         log.info("[AdminBook] updateStock: user={}, id={}, stock={}", username ?: "guest", id, stock)
         log.info("[AdminBook] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return adminBookService.updateStock(id, stock)
diff --git a/src/main/kotlin/com/msksbr/bookmgr/controller/AdminBorrowController.kt b/src/main/kotlin/com/msksbr/bookmgr/controller/AdminBorrowController.kt
index 8c731f3..6e2d09e 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/controller/AdminBorrowController.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/controller/AdminBorrowController.kt
@@ -4,7 +4,8 @@ import com.msksbr.bookmgr.annotation.RequireRole
 import com.msksbr.bookmgr.config.IpExtractor
 import com.msksbr.bookmgr.script.log
 import com.msksbr.bookmgr.service.AdminBorrowService
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
+import com.msksbr.bookmgr.vo.BorrowInfoVo
 import jakarta.servlet.http.HttpServletRequest
 import org.springframework.web.bind.annotation.*
 
@@ -37,7 +38,7 @@ class AdminBorrowController(
         @RequestAttribute(required = false) username: String?,
         query: String,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<List<BorrowInfoVo>> {
         log.info("[AdminBorrow] search: user={}, query={}", username ?: "guest", query)
         log.info("[AdminBorrow] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return adminBorrowService.searchBorrows(query)
@@ -53,7 +54,7 @@ class AdminBorrowController(
         @RequestAttribute(required = false) username: String?,
         id: Long,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<BorrowInfoVo> {
         log.info("[AdminBorrow] getOne: user={}, borrow record id={}", username ?: "guest", id)
         log.info("[AdminBorrow] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return adminBorrowService.getOneBorrow(id)
@@ -68,7 +69,7 @@ class AdminBorrowController(
     fun getAllBorrows(
         @RequestAttribute(required = false) username: String?,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<List<BorrowInfoVo>> {
         log.info("[AdminBorrow] getAll: user={}, ip={}", username ?: "guest", ipExtractor.getRealIp(request))
         log.info("[AdminBorrow] user agent: {}", request.getHeader("User-Agent"))
         return adminBorrowService.getAllBorrows()
@@ -85,7 +86,7 @@ class AdminBorrowController(
         bookId: Long,
         userId: Long,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<String> {
         log.info("[AdminBorrow] borrowBook: user={}, bookId={}, userId={}", username ?: "guest", bookId, userId)
         log.info("[AdminBorrow] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return adminBorrowService.borrowBook(bookId, userId)
@@ -101,7 +102,7 @@ class AdminBorrowController(
         @RequestAttribute(required = false) username: String?,
         recordId: Long,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<String> {
         log.info("[AdminBorrow] returnBook: user={}, recordId={}", username ?: "guest", recordId)
         log.info("[AdminBorrow] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return adminBorrowService.returnBook(recordId)
diff --git a/src/main/kotlin/com/msksbr/bookmgr/controller/AuthController.kt b/src/main/kotlin/com/msksbr/bookmgr/controller/AuthController.kt
index ce226c4..1c0fc5e 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/controller/AuthController.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/controller/AuthController.kt
@@ -5,7 +5,8 @@ import com.msksbr.bookmgr.config.JwtUtils
 import com.msksbr.bookmgr.dto.UserLoginDto
 import com.msksbr.bookmgr.script.log
 import com.msksbr.bookmgr.service.AuthService
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
+import com.msksbr.bookmgr.vo.LoginVo
 import jakarta.servlet.http.HttpServletRequest
 import jakarta.validation.Valid
 import org.springframework.web.bind.annotation.*
@@ -42,7 +43,7 @@ class AuthController(
         @RequestBody
         loginDTO: UserLoginDto,
         request: HttpServletRequest
-    ): Result<out Any?> {
+    ): ApiResult<LoginVo> {
         log.info("[Auth] login attempt: user={}, ip={}", loginDTO.username, ipExtractor.getRealIp(request))
         log.debug("[Auth] user agent: {}", request.getHeader("User-Agent"))
         val user = authService.login(loginDTO)
@@ -50,16 +51,15 @@ class AuthController(
             // 登录成功，签发 JWT
             val token = jwtUtils.generateToken(user.username, user.role, user.id!!)
             log.info("[Auth] login success: user={}", user.username)
-            Result.success(
-                mapOf(
-                    "token" to token,
-                    "username" to user.username,
-                    "role" to user.role
-                )
+            val loginVo = LoginVo(
+                token = token,
+                username = user.username,
+                role = user.role
             )
+            ApiResult.success(loginVo)
         } else {
             log.warn("[Auth] login failed: user={}", loginDTO.username)
-            Result.error("Incorrect username or password")
+            ApiResult.error("Incorrect username or password")
         }
     }
 
@@ -74,7 +74,7 @@ class AuthController(
     fun logout(
         @RequestAttribute(required = false) username: String?,
         request: HttpServletRequest
-    ): Result<String> {
+    ): ApiResult<String> {
         if (username != null) {
             log.info("[Auth] logout username: {}", username)
         }
@@ -82,6 +82,6 @@ class AuthController(
         log.debug("[Auth] user agent: {}", request.getHeader("User-Agent"))
         // JWT 无状态，登出只需客户端删除 token
         log.info("[Auth] logout success")
-        return Result.success("logout successfully")
+        return ApiResult.success("logout successfully")
     }
 }
diff --git a/src/main/kotlin/com/msksbr/bookmgr/controller/BookController.kt b/src/main/kotlin/com/msksbr/bookmgr/controller/BookController.kt
index 49fc199..a3f2c24 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/controller/BookController.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/controller/BookController.kt
@@ -1,9 +1,10 @@
 package com.msksbr.bookmgr.controller
 
 import com.msksbr.bookmgr.config.IpExtractor
+import com.msksbr.bookmgr.entity.Book
 import com.msksbr.bookmgr.script.log
 import com.msksbr.bookmgr.service.BookService
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
 import jakarta.servlet.http.HttpServletRequest
 import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.RequestAttribute
@@ -26,7 +27,7 @@ class BookController(private val bookService: BookService, private val ipExtract
         @RequestAttribute(required = false) username: String?,
         query: String,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<List<Book>> {
         log.info("[Book] search: user={}, query={}", username ?: "guest", query)
         log.info("[Book] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return bookService.searchBook(query)
@@ -37,7 +38,7 @@ class BookController(private val bookService: BookService, private val ipExtract
         @RequestAttribute(required = false) username: String?,
         request: HttpServletRequest,
         id: Long
-    ): Result<Any?> {
+    ): ApiResult<Book> {
         log.info("[Book] getOne: user={}, book id={}", username ?: "guest", id)
         log.info("[Book] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return bookService.getOneBook(id)
@@ -47,7 +48,7 @@ class BookController(private val bookService: BookService, private val ipExtract
     fun getAllBooks(
         @RequestAttribute(required = false) username: String?,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<List<Book>> {
         log.info("[Book] getAll: user={}", username ?: "guest")
         log.info("[Book] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return bookService.getAllBooks()
diff --git a/src/main/kotlin/com/msksbr/bookmgr/controller/BorrowController.kt b/src/main/kotlin/com/msksbr/bookmgr/controller/BorrowController.kt
index 9278089..fd79432 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/controller/BorrowController.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/controller/BorrowController.kt
@@ -4,7 +4,8 @@ import com.msksbr.bookmgr.annotation.RequireRole
 import com.msksbr.bookmgr.config.IpExtractor
 import com.msksbr.bookmgr.script.log
 import com.msksbr.bookmgr.service.BorrowService
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
+import com.msksbr.bookmgr.vo.MyBorrowVo
 import jakarta.servlet.http.HttpServletRequest
 import org.springframework.web.bind.annotation.*
 
@@ -37,7 +38,7 @@ class BorrowController(
         @RequestAttribute(required = false) username: String?,
         @RequestAttribute(required = false) userId: Long?,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<List<MyBorrowVo>> {
         log.info("[Borrow] getAll: user={}, userId={}", username ?: "guest", userId)
         log.info("[Borrow] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return borrowService.getAllMyBorrows(userId!!)
@@ -54,7 +55,7 @@ class BorrowController(
         query: String,
         @RequestAttribute(required = false) userId: Long?,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<List<MyBorrowVo>> {
         log.info("[Borrow] search: user={}, userId={}, query={}", username ?: "guest", userId, query)
         log.info("[Borrow] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return borrowService.searchMyBorrows(query, userId!!)
@@ -71,7 +72,7 @@ class BorrowController(
         borrowId: Long,
         @RequestAttribute(required = false) userId: Long?,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<MyBorrowVo> {
         log.info("[Borrow] getOne: user={}, userId={}, borrowId={}", username ?: "guest", userId, borrowId)
         log.info("[Borrow] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return borrowService.getOneMyBorrow(borrowId, userId!!)
@@ -88,7 +89,7 @@ class BorrowController(
         bookId: Long,
         @RequestAttribute(required = false) userId: Long?,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<String> {
         log.info("[Borrow] borrow: user={}, userId={}, bookId={}", username ?: "guest", userId, bookId)
         log.info("[Borrow] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return borrowService.borrowBookForMe(bookId, userId!!)
@@ -105,7 +106,7 @@ class BorrowController(
         borrowId: Long,
         @RequestAttribute(required = false) userId: Long?,
         request: HttpServletRequest
-    ): Result<Any?> {
+    ): ApiResult<String> {
         log.info("[Borrow] return: user={}, userId={}, borrowId={}", username ?: "guest", userId, borrowId)
         log.info("[Borrow] user agent: {}, ip={}", request.getHeader("User-Agent"), ipExtractor.getRealIp(request))
         return borrowService.returnBookForMe(borrowId, userId!!)
diff --git a/src/main/kotlin/com/msksbr/bookmgr/service/AdminBookService.kt b/src/main/kotlin/com/msksbr/bookmgr/service/AdminBookService.kt
index 92e6a22..baaf3e7 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/service/AdminBookService.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/service/AdminBookService.kt
@@ -2,7 +2,7 @@ package com.msksbr.bookmgr.service
 
 import com.msksbr.bookmgr.dto.BookAddDto
 import com.msksbr.bookmgr.dto.BookUpdateDto
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
 
 /*
 * 图书管理服务接口
@@ -14,25 +14,28 @@ interface AdminBookService {
     * @param bookAddDto 包含 name、author、stock
     * @return 成功返回 200，重复返回 409
     */
-    fun addBook(bookAddDto: BookAddDto): Result<Any?>
+    fun addBook(bookAddDto: BookAddDto): ApiResult<String>
+
     /*
     * 修改图书信息（名称或作者）
     * @param id 图书 ID
     * @param bookUpdateDto 包含可选的 name 和 author
     * @return 成功返回 200，不存在返回 500，重复返回 409
     */
-    fun updateBook(id: Long, bookUpdateDto: BookUpdateDto): Result<Any?>
+    fun updateBook(id: Long, bookUpdateDto: BookUpdateDto): ApiResult<String>
+
     /*
     * 删除图书
     * @param id 图书 ID
     * @return 成功返回 200，不存在返回 500
     */
-    fun deleteBook(id: Long): Result<Any?>
+    fun deleteBook(id: Long): ApiResult<String>
+
     /*
     * 调整库存
     * @param id 图书 ID
     * @param stock 新的库存数量，必须大于 0
     * @return 成功返回 200，不存在或库存不合法返回 500
     */
-    fun updateStock(id: Long, stock: Int): Result<Any?>
+    fun updateStock(id: Long, stock: Int): ApiResult<String>
 }
diff --git a/src/main/kotlin/com/msksbr/bookmgr/service/AdminBorrowService.kt b/src/main/kotlin/com/msksbr/bookmgr/service/AdminBorrowService.kt
index 6adf637..f181202 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/service/AdminBorrowService.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/service/AdminBorrowService.kt
@@ -1,6 +1,7 @@
 package com.msksbr.bookmgr.service
 
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
+import com.msksbr.bookmgr.vo.BorrowInfoVo
 
 /*
 * 借阅管理服务接口
@@ -12,20 +13,20 @@ interface AdminBorrowService {
     * @param query 搜索关键词，按书名或用户名模糊匹配
     * @return 匹配的借阅记录列表
     */
-    fun searchBorrows(query: String): Result<Any?>
+    fun searchBorrows(query: String): ApiResult<List<BorrowInfoVo>>
 
     /*
     * 查询单条借阅记录
     * @param id 借阅记录 ID
     * @return 借阅记录详情，含关联的图书和用户信息
     */
-    fun getOneBorrow(id: Long): Result<Any?>
+    fun getOneBorrow(id: Long): ApiResult<BorrowInfoVo>
 
     /*
     * 查询全部借阅记录
     * @return 所有借阅记录，含关联的图书和用户信息
     */
-    fun getAllBorrows(): Result<Any?>
+    fun getAllBorrows(): ApiResult<List<BorrowInfoVo>>
 
     /*
     * 管理员手动借书
@@ -33,12 +34,12 @@ interface AdminBorrowService {
     * @param userId 借书的用户 ID
     * @return 借阅结果
     */
-    fun borrowBook(bookId: Long, userId: Long): Result<Any?>
+    fun borrowBook(bookId: Long, userId: Long): ApiResult<String>
 
     /*
     * 管理员手动还书
     * @param recordId 借阅记录 ID
     * @return 归还结果
     */
-    fun returnBook(recordId: Long): Result<Any?>
+    fun returnBook(recordId: Long): ApiResult<String>
 }
diff --git a/src/main/kotlin/com/msksbr/bookmgr/service/BookService.kt b/src/main/kotlin/com/msksbr/bookmgr/service/BookService.kt
index 2c7b1de..c0e66e9 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/service/BookService.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/service/BookService.kt
@@ -1,6 +1,7 @@
 package com.msksbr.bookmgr.service
 
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.entity.Book
+import com.msksbr.bookmgr.template.ApiResult
 
 /*
 * 图书服务接口
@@ -12,17 +13,17 @@ interface BookService {
     * @param query 搜索关键词，不可为空
     * @return 搜索结果列表，无匹配时返回 404
     */
-    fun searchBook(query: String): Result<Any?>
+    fun searchBook(query: String): ApiResult<List<Book>>
 
     /*
     * 根据 ID 查询单本图书
     * @param id 图书 ID，必须为正整数
     * @return 图书实体，不存在时返回 404
     */
-    fun getOneBook(id: Long): Result<Any?>
+    fun getOneBook(id: Long): ApiResult<Book>
     /*
     * 查询全部图书列表
     * @return 所有图书的列表
     */
-    fun getAllBooks(): Result<Any?>
+    fun getAllBooks(): ApiResult<List<Book>>
 }
\ No newline at end of file
diff --git a/src/main/kotlin/com/msksbr/bookmgr/service/BorrowService.kt b/src/main/kotlin/com/msksbr/bookmgr/service/BorrowService.kt
index f43f4ab..7801de1 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/service/BorrowService.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/service/BorrowService.kt
@@ -1,6 +1,7 @@
 package com.msksbr.bookmgr.service
 
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
+import com.msksbr.bookmgr.vo.MyBorrowVo
 
 /*
 * 借阅服务接口
@@ -12,7 +13,7 @@ interface BorrowService {
     * @param userId 当前用户的 ID
     * @return 该用户的所有借阅记录
     */
-    fun getAllMyBorrows(userId: Long): Result<Any?>
+    fun getAllMyBorrows(userId: Long): ApiResult<List<MyBorrowVo>>
 
     /*
     * 搜索当前用户的借阅记录
@@ -20,7 +21,7 @@ interface BorrowService {
     * @param userId 当前用户的 ID
     * @return 匹配的借阅记录列表
     */
-    fun searchMyBorrows(query: String, userId: Long): Result<Any?>
+    fun searchMyBorrows(query: String, userId: Long): ApiResult<List<MyBorrowVo>>
 
     /*
     * 查询单条借阅记录
@@ -28,7 +29,7 @@ interface BorrowService {
     * @param userId 当前用户的 ID
     * @return 借阅记录详情
     */
-    fun getOneMyBorrow(borrowId: Long, userId: Long): Result<Any?>
+    fun getOneMyBorrow(borrowId: Long, userId: Long): ApiResult<MyBorrowVo>
 
     /*
     * 借书
@@ -36,7 +37,7 @@ interface BorrowService {
     * @param userId 当前用户的 ID
     * @return 借阅结果
     */
-    fun borrowBookForMe(bookId: Long, userId: Long): Result<Any?>
+    fun borrowBookForMe(bookId: Long, userId: Long): ApiResult<String>
 
     /*
     * 还书
@@ -44,5 +45,5 @@ interface BorrowService {
     * @param userId 当前用户的 ID
     * @return 归还结果
     */
-    fun returnBookForMe(borrowId: Long, userId: Long): Result<Any?>
+    fun returnBookForMe(borrowId: Long, userId: Long): ApiResult<String>
 }
diff --git a/src/main/kotlin/com/msksbr/bookmgr/service/impl/AdminBookServiceImpl.kt b/src/main/kotlin/com/msksbr/bookmgr/service/impl/AdminBookServiceImpl.kt
index 6980602..02e5ec9 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/service/impl/AdminBookServiceImpl.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/service/impl/AdminBookServiceImpl.kt
@@ -7,7 +7,7 @@ import com.msksbr.bookmgr.entity.Book
 import com.msksbr.bookmgr.mapper.BookMapper
 import com.msksbr.bookmgr.script.log
 import com.msksbr.bookmgr.service.AdminBookService
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
 import org.springframework.stereotype.Service
 
 /*
@@ -16,7 +16,7 @@ import org.springframework.stereotype.Service
 */
 @Service
 class AdminBookServiceImpl(private val bookMapper: BookMapper) : AdminBookService {
-    override fun addBook(bookAddDto: BookAddDto): Result<Any?> {
+    override fun addBook(bookAddDto: BookAddDto): ApiResult<String> {
         val book = Book(
             id = null,
             name = bookAddDto.name,
@@ -25,25 +25,25 @@ class AdminBookServiceImpl(private val bookMapper: BookMapper) : AdminBookServic
         )
         if (isBookDuplicate(book)) {
             log.warn("[AdminBook] add: duplicate book, name={}, author={}", book.name, book.author)
-            return Result.conflict("Book already exists, please update the stock instead")
+            return ApiResult.conflict("Book already exists, please update the stock instead")
         }
         bookMapper.insert(book)
         log.info("[AdminBook] add: success, id={}, name={}", book.id, book.name)
-        return Result.success("Book added successfully")
+        return ApiResult.success("Book added successfully")
     }
 
     override fun updateBook(
         id: Long,
         bookUpdateDto: BookUpdateDto
-    ): Result<Any?> {
+    ): ApiResult<String> {
         if (bookUpdateDto.name.isBlank() && bookUpdateDto.author.isBlank()) {
             log.warn("[AdminBook] update: both name and author are blank, id={}", id)
-            return Result.error("At least one of name or author must be provided")
+            return ApiResult.error("At least one of name or author must be provided")
         }
         val existing = bookMapper.selectById(id)
             ?: run {
                 log.warn("[AdminBook] update: book not found, id={}", id)
-                return Result.error("Book does not exist")
+                return ApiResult.error("Book does not exist")
             }
         val book = Book(
             id = id,
@@ -53,33 +53,33 @@ class AdminBookServiceImpl(private val bookMapper: BookMapper) : AdminBookServic
         )
         if (isBookDuplicate(book, book.id)) {
             log.warn("[AdminBook] update: duplicate book, name={}, author={}", book.name, book.author)
-            return Result.conflict("Book already exists, please update the stock instead")
+            return ApiResult.conflict("Book already exists, please update the stock instead")
         }
         bookMapper.updateById(book)
         log.info("[AdminBook] update: success, id={}", book.id)
-        return Result.success("Book updated successfully")
+        return ApiResult.success("Book updated successfully")
     }
 
-    override fun deleteBook(id: Long): Result<Any?> {
+    override fun deleteBook(id: Long): ApiResult<String> {
         val existing = bookMapper.selectById(id)
             ?: run {
                 log.warn("[AdminBook] delete: book not found, id={}", id)
-                return Result.error("Book does not exist")
+                return ApiResult.error("Book does not exist")
             }
         bookMapper.deleteById(id)
         log.info("[AdminBook] delete: success, id={}, name={}", id, existing.name)
-        return Result.success("Book deleted successfully")
+        return ApiResult.success("Book deleted successfully")
     }
 
-    override fun updateStock(id: Long, stock: Int): Result<Any?> {
+    override fun updateStock(id: Long, stock: Int): ApiResult<String> {
         if (stock <= 0) {
             log.warn("[AdminBook] updateStock: invalid stock={}, id={}", stock, id)
-            return Result.error("Stock must be greater than zero")
+            return ApiResult.error("Stock must be greater than zero")
         }
         val existing = bookMapper.selectById(id)
             ?: run {
                 log.warn("[AdminBook] updateStock: book not found, id={}", id)
-                return Result.error("Book does not exist")
+                return ApiResult.error("Book does not exist")
             }
         val book = Book(
             id = id,
@@ -89,7 +89,7 @@ class AdminBookServiceImpl(private val bookMapper: BookMapper) : AdminBookServic
         )
         bookMapper.updateById(book)
         log.debug("[AdminBook] updateStock: success, id={}, stock={}", id, stock)
-        return Result.success("Book updated successfully")
+        return ApiResult.success("Book updated successfully")
     }
 
     // 查询是否有书名和作者完全相同的书
diff --git a/src/main/kotlin/com/msksbr/bookmgr/service/impl/AdminBorrowServiceImpl.kt b/src/main/kotlin/com/msksbr/bookmgr/service/impl/AdminBorrowServiceImpl.kt
index 575e00d..6639670 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/service/impl/AdminBorrowServiceImpl.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/service/impl/AdminBorrowServiceImpl.kt
@@ -9,7 +9,7 @@ import com.msksbr.bookmgr.mapper.BorrowRecordMapper
 import com.msksbr.bookmgr.mapper.UserMapper
 import com.msksbr.bookmgr.script.log
 import com.msksbr.bookmgr.service.AdminBorrowService
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
 import com.msksbr.bookmgr.vo.BorrowInfoVo
 import com.msksbr.bookmgr.vo.borrow.BookBorrowVo
 import com.msksbr.bookmgr.vo.borrow.UserBorrowVo
@@ -34,10 +34,10 @@ class AdminBorrowServiceImpl(
     * 搜索借阅记录：并发查询 user 表和 book 表，按用户名、角色、书名或作者匹配
     * 将匹配到的 userId / bookId 取并集后查询借阅记录，降序排列
     */
-    override fun searchBorrows(query: String): Result<Any?> {
+    override fun searchBorrows(query: String): ApiResult<List<BorrowInfoVo>> {
         if (query.isBlank()) {
             log.warn("[AdminBorrow] search: query is blank")
-            return Result.error("Search query cannot be empty")
+            return ApiResult.error("Search query cannot be empty")
         }
         val (matchedUserIds, matchedBookIds) = runBlocking {
             val userDeferred = async(Dispatchers.IO) {
@@ -60,7 +60,7 @@ class AdminBorrowServiceImpl(
         }
         if (matchedUserIds.isEmpty() && matchedBookIds.isEmpty()) {
             log.info("[AdminBorrow] search: no results for {}", query)
-            return Result.notFound("No matching borrow records found")
+            return ApiResult.notFound("No matching borrow records found")
         }
         val borrows = borrowRecordMapper.selectList(
             QueryWrapper<BorrowRecord>()
@@ -75,17 +75,17 @@ class AdminBorrowServiceImpl(
             buildBorrowVos(borrows, userIds, bookIds)
         }
         log.info("[AdminBorrow] search: found {} records for {}", result.size, query)
-        return Result.success(result)
+        return ApiResult.success(result)
     }
 
     /*
     * 查询单条借阅记录，含关联的图书和用户信息
     */
-    override fun getOneBorrow(id: Long): Result<Any?> {
+    override fun getOneBorrow(id: Long): ApiResult<BorrowInfoVo> {
         val borrow = borrowRecordMapper.selectById(id)
         if (borrow == null) {
             log.info("[AdminBorrow] getOne: no record for id={}", id)
-            return Result.notFound("Borrow record not found")
+            return ApiResult.notFound("Borrow record not found")
         }
         val user = userMapper.selectById(borrow.userId)
         val book = bookMapper.selectById(borrow.bookId)
@@ -106,17 +106,17 @@ class AdminBorrowServiceImpl(
             )
         )
         log.info("[AdminBorrow] getOne: found record id={}, user={}, book={}", id, user.username, book.name)
-        return Result.success(result)
+        return ApiResult.success(result)
     }
 
     /*
     * 查询全部借阅记录，并发加载关联的用户和图书信息
     */
-    override fun getAllBorrows(): Result<Any?> {
+    override fun getAllBorrows(): ApiResult<List<BorrowInfoVo>> {
         val borrows = borrowRecordMapper.selectList(null)
         if (borrows.isEmpty()) {
             log.info("[AdminBorrow] getAll: no records")
-            return Result.notFound("No borrow records found")
+            return ApiResult.notFound("No borrow records found")
         }
         val userIds = borrows.map { it.userId }.distinct()
         val bookIds = borrows.map { it.bookId }.distinct()
@@ -125,13 +125,13 @@ class AdminBorrowServiceImpl(
         val result = runBlocking { buildBorrowVos(borrows, userIds, bookIds) }
 
         log.info("[AdminBorrow] getAll: found {} records", result.size)
-        return Result.success(result)
+        return ApiResult.success(result)
     }
 
     /*
     * 管理员手动借书
     */
-    override fun borrowBook(bookId: Long, userId: Long): Result<Any?> {
+    override fun borrowBook(bookId: Long, userId: Long): ApiResult<String> {
         val (matchedUser, matchedBook) = runBlocking {
             val userDeferred = async(Dispatchers.IO) {
                 userMapper.selectById(userId)
@@ -143,15 +143,15 @@ class AdminBorrowServiceImpl(
         }
         if (matchedUser == null) {
             log.warn("[AdminBorrow] borrowBook: user not found, userId={}", userId)
-            return Result.error("User does not exist")
+            return ApiResult.error("User does not exist")
         }
         if (matchedBook == null) {
             log.warn("[AdminBorrow] borrowBook: book not found, bookId={}", bookId)
-            return Result.error("Book does not exist")
+            return ApiResult.error("Book does not exist")
         }
         if (matchedBook.stock < 1) {
             log.warn("[AdminBorrow] borrowBook: book out of stock, bookId={}, stock={}", bookId, matchedBook.stock)
-            return Result.conflict("Book is out of stock")
+            return ApiResult.conflict("Book is out of stock")
         }
         val book = Book(
             id = matchedBook.id,
@@ -170,21 +170,21 @@ class AdminBorrowServiceImpl(
         bookMapper.updateById(book)
         borrowRecordMapper.insert(borrow)
         log.info("[AdminBorrow] borrowBook: success, userId={}, bookId={}, book={}", userId, bookId, matchedBook.name)
-        return Result.success("Book borrowed successfully")
+        return ApiResult.success("Book borrowed successfully")
     }
 
     /*
     * 管理员手动还书
     */
-    override fun returnBook(recordId: Long): Result<Any?> {
+    override fun returnBook(recordId: Long): ApiResult<String> {
         val matchedBorrow = borrowRecordMapper.selectById(recordId)
         if (matchedBorrow == null) {
             log.warn("[AdminBorrow] returnBook: record not found, recordId={}", recordId)
-            return Result.error("Borrow record does not exist")
+            return ApiResult.error("Borrow record does not exist")
         }
         if (matchedBorrow.status == "RETURNED") {
             log.warn("[AdminBorrow] returnBook: already returned, recordId={}", recordId)
-            return Result.conflict("Book has already been returned")
+            return ApiResult.conflict("Book has already been returned")
         }
         val borrow = BorrowRecord(
             id = matchedBorrow.id,
@@ -197,7 +197,7 @@ class AdminBorrowServiceImpl(
         val matchedBook = bookMapper.selectById(matchedBorrow.bookId)
         if (matchedBook == null) {
             log.warn("[AdminBorrow] returnBook: book not found, bookId={}", matchedBorrow.bookId)
-            return Result.error("Book does not exist")
+            return ApiResult.error("Book does not exist")
         }
         val book = Book(
             id = matchedBook.id,
@@ -208,7 +208,7 @@ class AdminBorrowServiceImpl(
         bookMapper.updateById(book)
         borrowRecordMapper.updateById(borrow)
         log.info("[AdminBorrow] returnBook: success, recordId={}, userId={}, book={}", recordId, borrow.userId, matchedBook.name)
-        return Result.success("Book returned successfully")
+        return ApiResult.success("Book returned successfully")
     }
 
     // 并发查询用户和图书信息，组装为 BorrowInfoVo 列表
diff --git a/src/main/kotlin/com/msksbr/bookmgr/service/impl/BookServiceImpl.kt b/src/main/kotlin/com/msksbr/bookmgr/service/impl/BookServiceImpl.kt
index fc2a8d3..5dfeb1e 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/service/impl/BookServiceImpl.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/service/impl/BookServiceImpl.kt
@@ -5,7 +5,7 @@ import com.msksbr.bookmgr.entity.Book
 import com.msksbr.bookmgr.mapper.BookMapper
 import com.msksbr.bookmgr.script.log
 import com.msksbr.bookmgr.service.BookService
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
 import org.springframework.stereotype.Service
 
 /*
@@ -14,10 +14,10 @@ import org.springframework.stereotype.Service
 */
 @Service
 class BookServiceImpl(private val bookMapper: BookMapper) : BookService {
-    override fun searchBook(query: String): Result<Any?> {
+    override fun searchBook(query: String): ApiResult<List<Book>> {
         if (query.isBlank()) {
             log.warn("[Book] search: query is blank")
-            return Result.error("Search query cannot be empty")
+            return ApiResult.error("Search query cannot be empty")
         }
         val result = bookMapper.selectList(
             QueryWrapper<Book>()
@@ -27,16 +27,16 @@ class BookServiceImpl(private val bookMapper: BookMapper) : BookService {
         )
         if (result.isEmpty()) {
             log.info("[Book] search: no results for {}", query)
-            return Result.notFound("No matching books found")
+            return ApiResult.notFound("No matching books found")
         }
         log.info("[Book] search: found {} results for {}", result.size, query)
-        return Result.success(result)
+        return ApiResult.success(result)
     }
 
-    override fun getOneBook(id: Long): Result<Any?> {
+    override fun getOneBook(id: Long): ApiResult<Book> {
         if (id < 1) {
             log.warn("[Book] getOne: invalid id={}", id)
-            return Result.error("Invalid book ID")
+            return ApiResult.error("Invalid book ID")
         }
         val result = bookMapper.selectOne(
             QueryWrapper<Book>()
@@ -44,15 +44,15 @@ class BookServiceImpl(private val bookMapper: BookMapper) : BookService {
         )
         if (result == null) {
             log.info("[Book] getOneBook: no results for {}", id)
-            return Result.notFound("Book not found")
+            return ApiResult.notFound("Book not found")
         }
         log.info("[Book] getOne: found {}, author={}", result.name, result.author)
-        return Result.success(result)
+        return ApiResult.success(result)
     }
 
-    override fun getAllBooks(): Result<Any?> {
+    override fun getAllBooks(): ApiResult<List<Book>> {
         val books = bookMapper.selectList(null)
         log.info("[Book] getAll: found {} books", books.size)
-        return Result.success(books)
+        return ApiResult.success(books)
     }
 }
diff --git a/src/main/kotlin/com/msksbr/bookmgr/service/impl/BorrowServiceImpl.kt b/src/main/kotlin/com/msksbr/bookmgr/service/impl/BorrowServiceImpl.kt
index ce10a7d..7327858 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/service/impl/BorrowServiceImpl.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/service/impl/BorrowServiceImpl.kt
@@ -7,7 +7,7 @@ import com.msksbr.bookmgr.mapper.BookMapper
 import com.msksbr.bookmgr.mapper.BorrowRecordMapper
 import com.msksbr.bookmgr.script.log
 import com.msksbr.bookmgr.service.BorrowService
-import com.msksbr.bookmgr.template.Result
+import com.msksbr.bookmgr.template.ApiResult
 import com.msksbr.bookmgr.vo.MyBorrowVo
 import com.msksbr.bookmgr.vo.borrow.BookBorrowVo
 import kotlinx.coroutines.Dispatchers
@@ -28,18 +28,18 @@ class BorrowServiceImpl(
     /*
     * 查询当前用户的所有借阅记录
     */
-    override fun getAllMyBorrows(userId: Long): Result<Any?> {
+    override fun getAllMyBorrows(userId: Long): ApiResult<List<MyBorrowVo>> {
         val borrows = borrowRecordMapper.selectList(
             QueryWrapper<BorrowRecord>().eq("user_id", userId).orderByDesc("borrow_time")
         )
         if (borrows.isEmpty()) {
             log.info("[Borrow] getAll: no records for userId={}", userId)
-            return Result.notFound("No borrow records found")
+            return ApiResult.notFound("No borrow records found")
         }
         val bookIds = borrows.map { it.bookId }.distinct()
         val result = runBlocking { buildMyBorrowVos(borrows, bookIds) }
         log.info("[Borrow] getAll: found {} records for userId={}", result.size, userId)
-        return Result.success(result)
+        return ApiResult.success(result)
     }
 
     /*
@@ -48,10 +48,10 @@ class BorrowServiceImpl(
     override fun searchMyBorrows(
         query: String,
         userId: Long
-    ): Result<Any?> {
+    ): ApiResult<List<MyBorrowVo>> {
         if (query.isBlank()) {
             log.warn("[Borrow] search: query is blank")
-            return Result.error("Search query cannot be empty")
+            return ApiResult.error("Search query cannot be empty")
         }
         val matchedBookIds = bookMapper.selectList(
             QueryWrapper<Book>()
@@ -61,7 +61,7 @@ class BorrowServiceImpl(
         ).map { it.id }
         if (matchedBookIds.isEmpty()) {
             log.info("[Borrow] search: no results for {}", query)
-            return Result.notFound("No matching borrow records found")
+            return ApiResult.notFound("No matching borrow records found")
         }
         val borrows = borrowRecordMapper.selectList(
             QueryWrapper<BorrowRecord>()
@@ -71,12 +71,12 @@ class BorrowServiceImpl(
         )
         if (borrows.isEmpty()) {
             log.info("[Borrow] search: no borrows match for userId={}, query={}", userId, query)
-            return Result.notFound("No matching borrow records found")
+            return ApiResult.notFound("No matching borrow records found")
         }
         val bookIds = borrows.map { it.bookId }.distinct()
         val result = runBlocking { buildMyBorrowVos(borrows, bookIds) }
         log.info("[Borrow] search: found {} records for userId={}, query={}", result.size, userId, query)
-        return Result.success(result)
+        return ApiResult.success(result)
     }
 
     /*
@@ -85,18 +85,18 @@ class BorrowServiceImpl(
     override fun getOneMyBorrow(
         borrowId: Long,
         userId: Long
-    ): Result<Any?> {
+    ): ApiResult<MyBorrowVo> {
         val borrow = borrowRecordMapper.selectById(borrowId)
         if (borrow == null) {
             log.info("[Borrow] getOne: record not found, borrowId={}", borrowId)
-            return Result.notFound("Borrow record not found")
+            return ApiResult.notFound("Borrow record not found")
         }
         if (borrow.userId != userId) {
             log.warn(
                 "[Borrow] getOne: OWNERSHIP MISMATCH — userId={} attempted to access borrowId={} belonging to userId={}, bookId={}, status={}",
                 userId, borrowId, borrow.userId, borrow.bookId, borrow.status
             )
-            return Result.notFound("Borrow record not found")
+            return ApiResult.notFound("Borrow record not found")
         }
         val book = bookMapper.selectById(borrow.bookId)
         val result = MyBorrowVo(
@@ -109,7 +109,7 @@ class BorrowServiceImpl(
             } ?: BookBorrowVo()
         )
         log.info("[Borrow] getOne: found record borrowId={}, userId={}, book={}", borrowId, userId, book?.name)
-        return Result.success(result)
+        return ApiResult.success(result)
     }
 
     /*
@@ -118,15 +118,15 @@ class BorrowServiceImpl(
     override fun borrowBookForMe(
         bookId: Long,
         userId: Long
-    ): Result<Any?> {
+    ): ApiResult<String> {
         val matchedBook = bookMapper.selectById(bookId)
         if (matchedBook == null) {
             log.warn("[Borrow] borrow: book not found, bookId={}", bookId)
-            return Result.error("Book does not exist")
+            return ApiResult.error("Book does not exist")
         }
         if (matchedBook.stock < 1) {
             log.warn("[Borrow] borrow: book out of stock, bookId={}, stock={}", bookId, matchedBook.stock)
-            return Result.conflict("Book is out of stock")
+            return ApiResult.conflict("Book is out of stock")
         }
         val book = Book(
             id = matchedBook.id,
@@ -145,7 +145,7 @@ class BorrowServiceImpl(
         bookMapper.updateById(book)
         borrowRecordMapper.insert(borrow)
         log.info("[Borrow] borrow: success, userId={}, bookId={}, book={}", userId, bookId, matchedBook.name)
-        return Result.success("Book borrowed successfully")
+        return ApiResult.success("Book borrowed successfully")
     }
 
     /*
@@ -154,22 +154,22 @@ class BorrowServiceImpl(
     override fun returnBookForMe(
         borrowId: Long,
         userId: Long
-    ): Result<Any?> {
+    ): ApiResult<String> {
         val matchedBorrow = borrowRecordMapper.selectById(borrowId)
         if (matchedBorrow == null) {
             log.warn("[Borrow] return: record not found, borrowId={}", borrowId)
-            return Result.error("Borrow record does not exist")
+            return ApiResult.error("Borrow record does not exist")
         }
         if (matchedBorrow.userId != userId) {
             log.warn(
                 "[Borrow] return: OWNERSHIP MISMATCH — userId={} attempted to return borrowId={} belonging to userId={}, bookId={}, status={}",
                 userId, borrowId, matchedBorrow.userId, matchedBorrow.bookId, matchedBorrow.status
             )
-            return Result.error("Borrow record does not exist")
+            return ApiResult.error("Borrow record does not exist")
         }
         if (matchedBorrow.status == "RETURNED") {
             log.warn("[Borrow] return: already returned, borrowId={}", borrowId)
-            return Result.conflict("Book has already been returned")
+            return ApiResult.conflict("Book has already been returned")
         }
         val borrow = BorrowRecord(
             id = matchedBorrow.id,
@@ -182,7 +182,7 @@ class BorrowServiceImpl(
         val matchedBook = bookMapper.selectById(matchedBorrow.bookId)
         if (matchedBook == null) {
             log.warn("[Borrow] return: book not found, bookId={}", matchedBorrow.bookId)
-            return Result.error("Book does not exist")
+            return ApiResult.error("Book does not exist")
         }
         val book = Book(
             id = matchedBook.id,
@@ -193,7 +193,7 @@ class BorrowServiceImpl(
         bookMapper.updateById(book)
         borrowRecordMapper.updateById(borrow)
         log.info("[Borrow] return: success, borrowId={}, userId={}, book={}", borrowId, userId, matchedBook.name)
-        return Result.success("Book returned successfully")
+        return ApiResult.success("Book returned successfully")
     }
 
     // 并发查询图书信息，组装为 MyBorrowVo 列表
diff --git a/src/main/kotlin/com/msksbr/bookmgr/template/Result.kt b/src/main/kotlin/com/msksbr/bookmgr/template/ApiResult.kt
similarity index 83%
rename from src/main/kotlin/com/msksbr/bookmgr/template/Result.kt
rename to src/main/kotlin/com/msksbr/bookmgr/template/ApiResult.kt
index c41fffd..8e5eb4d 100644
--- a/src/main/kotlin/com/msksbr/bookmgr/template/Result.kt
+++ b/src/main/kotlin/com/msksbr/bookmgr/template/ApiResult.kt
@@ -13,7 +13,7 @@ package com.msksbr.bookmgr.template
 *   message - 人类可读的提示信息，前端可直接展示
 *   data    - 响应数据体，可为 null
 */
-data class Result<T>(
+data class ApiResult<T>(
     var code: Int,
     var message: String,
     var data: T?
@@ -25,8 +25,8 @@ data class Result<T>(
         *
         * JSON 输出示例：{ "code": 200, "message": "success", "data": {...} }
         */
-        fun <T> success(data: T): Result<T> {
-            return Result(
+        fun <T> success(data: T): ApiResult<T> {
+            return ApiResult(
                 code = 200,
                 message = "success",
                 data = data
@@ -39,8 +39,8 @@ data class Result<T>(
         *
         * JSON 输出示例：{ "code": 500, "message": "xxx", "data": null }
         */
-        fun error(message: String): Result<Any?> {
-            return Result(
+        fun <T> error(message: String): ApiResult<T> {
+            return ApiResult(
                 code = 500,
                 message = message,
                 data = null
@@ -53,8 +53,8 @@ data class Result<T>(
         *
         * JSON 输出示例：{ "code": 401, "message": "xxx" }
         */
-        fun unauthorized(message: String): Result<Any?> {
-            return Result(
+        fun <T> unauthorized(message: String): ApiResult<T> {
+            return ApiResult(
                 code = 401,
                 message = message,
                 data = null
@@ -65,8 +65,8 @@ data class Result<T>(
         * 权限不足响应 — 返回 403
         * JSON 输出示例：{"code":403,"message":"Access denied: insufficient permissions"}
         */
-        fun forbidden(message: String): Result<Any?> {
-            return Result(
+        fun <T> forbidden(message: String): ApiResult<T> {
+            return ApiResult(
                 code = 403,
                 message = message,
                 data = null
@@ -79,8 +79,8 @@ data class Result<T>(
         *
         * JSON 输出示例：{ "code": 404, "message": "xxx" }
         */
-        fun notFound(message: String): Result<Any?> {
-            return Result(
+        fun <T> notFound(message: String): ApiResult<T> {
+            return ApiResult(
                 code = 404,
                 message = message,
                 data = null
@@ -93,8 +93,8 @@ data class Result<T>(
         *
         * JSON 输出示例：{ "code": 409, "message": "xxx" }
         */
-        fun conflict(message: String): Result<Any?> {
-            return Result(
+        fun <T> conflict(message: String): ApiResult<T> {
+            return ApiResult(
                 code = 409,
                 message = message,
                 data = null
diff --git a/src/main/kotlin/com/msksbr/bookmgr/vo/LoginVo.kt b/src/main/kotlin/com/msksbr/bookmgr/vo/LoginVo.kt
new file mode 100644
index 0000000..51705b8
--- /dev/null
+++ b/src/main/kotlin/com/msksbr/bookmgr/vo/LoginVo.kt
@@ -0,0 +1,7 @@
+package com.msksbr.bookmgr.vo
+
+data class LoginVo(
+    val token: String,
+    val username: String,
+    val role: String
+)
\ No newline at end of file