v3 增加并优化了人工评价逻辑，增加了运动量(PAL)判断

app.py

@@ -15,6 +15,24 @@ CORS(app, resources={
 report_service = NutritionReportService()
 
 
+@app.route("/api/preview-intake", methods=["POST"])
+def preview_intake():
+    try:
+        front_json = request.get_json()
+        if not front_json:
+            return jsonify({"message": "没有收到 JSON 数据"}), 400
+
+        preview = report_service.preview_intake(front_json)
+        return jsonify(preview)
+
+    except Exception as e:
+        print("预览计算报错：", e)
+        return jsonify({
+            "message": "计算失败",
+            "error": str(e)
+        }), 500
+
+
 @app.route("/api/generate-pdf", methods=["POST"])
 def generate_pdf():
     try: