fix: 修复学生无法取得课件列表的bug

src/main/java/nju/seec/helper/controller/CourseController.java

@@ -83,7 +83,7 @@ public class CourseController {
     }
 
     /**
-     * 获取课程信息（无需登录）
+     * 获取课程列表（无需登录）
      */
     @GetMapping("/all")
     public PageResponse<CourseVO> getCourses(@RequestParam(required = false, defaultValue = "") String key,
@@ -92,7 +92,7 @@ public class CourseController {
     }
 
     /**
-     * 教师获取所创课程
+     * 获取课程列表
      */
     @Auth(roles = {UserType.TEACHER, UserType.STUDENT}, message = "获取课程列表")
     @GetMapping

src/main/java/nju/seec/helper/controller/SlideController.java

@@ -88,7 +88,7 @@ public class SlideController {
     /**
      * 教师获取课件
      */
-    @Auth(roles = UserType.TEACHER, message = "获取课件")
+    @Auth(roles = UserType.TEACHER, message = "获取课件列表")
     @GetMapping
     public PageResponse<SlideVO> getSlides(LoginUser user,
                                            @RequestParam(required = false, defaultValue = "") String key,
@@ -99,7 +99,7 @@ public class SlideController {
     /**
      * 基于课程获取课件
      */
-    @Auth(roles = UserType.TEACHER, message = "获取课件")
+    @Auth(roles = {UserType.TEACHER, UserType.STUDENT}, message = "获取课件列表")
     @GetMapping("/course/{courseId}")
     public PageResponse<SlideVO> getSlidesByCourse(LoginUser user,
                                                    @PathVariable Long courseId,