feat: update ocr model

internal/service/recognition_service.go

@@ -200,7 +200,7 @@ func (s *RecognitionService) processVLFormula(ctx context.Context, taskID int64)
 	log.Info(ctx, "func", "processVLFormulaQueue", "msg", "获取任务成功", "task_id", taskID)
 
 	// 处理具体任务
-	if err := s.processVLFormulaTask(ctx, taskID, task.FileURL, utils.ModelVLQwen32BInstruct); err != nil {
+	if err := s.processVLFormulaTask(ctx, taskID, task.FileURL, utils.ModelVLQwen3VL32BInstruct); err != nil {
 		log.Error(ctx, "func", "processVLFormulaQueue", "msg", "处理任务失败", "error", err)
 		return
 	}
@@ -349,24 +349,7 @@ func (s *RecognitionService) processVLFormulaTask(ctx context.Context, taskID in
 		log.Error(ctx, "func", "processVLFormulaTask", "msg", "读取图片数据失败", "error", err)
 		return err
 	}
-	prompt := `
-Please perform OCR on the image and output only LaTeX code.
-Important instructions:
-
- * "The image contains mathematical formulas, no plain text."
-
- * "Preserve all layout, symbols, subscripts, summations, parentheses, etc., exactly as shown."
-
- * "Use \[ ... \] or align environments to represent multiline math expressions."
-
- * "Use adaptive symbols such as \left and \right where applicable."
-
- * "Do not include any extra commentary, template answers, or unrelated equations."
-
- * "Only output valid LaTeX code based on the actual content of the image, and not change the original mathematical expression."
-
- * "The output result must be can render by better-react-mathjax." 
- `
+	prompt := `Please perform OCR on the image and output only LaTeX code.`
 	base64Image := base64.StdEncoding.EncodeToString(imageData)
 
 	requestBody := formula.VLFormulaRequest{
@@ -518,7 +501,7 @@ func (s *RecognitionService) processOneTask(ctx context.Context) {
 	log.Info(ctx, "func", "processFormulaQueue", "msg", "获取任务成功", "task_id", taskID)
 
 	// 处理具体任务
-	if err := s.processVLFormulaTask(ctx, taskID, task.FileURL, utils.ModelVLDeepSeekOCR); err != nil {
+	if err := s.processVLFormulaTask(ctx, taskID, task.FileURL, utils.ModelVLQwen3VL32BInstruct); err != nil {
 		log.Error(ctx, "func", "processFormulaQueue", "msg", "处理任务失败", "error", err)
 		return
 	}

pkg/utils/model.go

@@ -1,6 +1,6 @@
 package utils
 
 const (
-	ModelVLQwen32BInstruct = "Qwen/Qwen2.5-VL-32B-Instruct"
-	ModelVLDeepSeekOCR     = "deepseek-ai/DeepSeek-OCR"
+	ModelVLDeepSeekOCR        = "deepseek-ai/DeepSeek-OCR"
+	ModelVLQwen3VL32BInstruct = "Qwen/Qwen3-VL-32B-Instruct"
 )