show not found of no product relate search score > 0.83

app.py

@@ -123,8 +123,10 @@ def search_product(query, model_name):
     """
 
     result_summary = ""
+    found = False
     for res in result:
       if res.score > 0.83:
+        found = True
         name = res.payload.get("name", "ไม่ทราบชื่อสินค้า")
         score = f"{res.score:.4f}"
         img_url = res.payload.get("imageUrl", "")
@@ -146,6 +148,14 @@ def search_product(query, model_name):
 
     html_output += "</div>"
 
+    if not found:
+      html_output += """
+      <div style="text-align: center; font-size: 18px; color: #a00; padding: 30px;">
+          ❌ ไม่พบสินค้าที่เกี่ยวข้องกับคำค้นนี้
+      </div>
+      """
+      return html_output
+
     latest_query_result["query"] = corrected_query
     latest_query_result["result"] = result_summary.strip()
     latest_query_result["model"] = model_name