feat: file type.

controllers/train.go

@@ -218,6 +218,31 @@ func (tc *TrainingController) UploadTrainingSession(c *gin.Context) {
 	writeSuccess(c, http.StatusOK, "session updated", nil)
 }
 
+type cloudLessonPlanItem struct {
+	ID               uint   `json:"id"`
+	OriginalFilename string `json:"originalFilename"`
+	FileSize         int64  `json:"fileSize"`
+	UploaderName     string `json:"uploaderName"`
+}
+
+func (tc *TrainingController) ListCloudLessonPlans(c *gin.Context) {
+	var records []models.AppFile
+	if err := tc.DB.Where("file_type = ?", models.AppFileTypeLessonPlan).Order("created_at DESC").Find(&records).Error; err != nil {
+		writeError(c, http.StatusInternalServerError, "failed to list lesson plans")
+		return
+	}
+	items := make([]cloudLessonPlanItem, 0, len(records))
+	for _, r := range records {
+		items = append(items, cloudLessonPlanItem{
+			ID:               r.ID,
+			OriginalFilename: r.OriginalFilename,
+			FileSize:         r.FileSize,
+			UploaderName:     r.UploaderName,
+		})
+	}
+	writeSuccess(c, http.StatusOK, "query success", items)
+}
+
 // analysis_response.go
 type AnalysisResponse struct {
 	Status  string `json:"status"`  // 状态码