Update prediction results workflow

app/routes.py

@@ -130,16 +130,10 @@ def password_reset_users():
 
 def prediction_result_payload(artifacts, record: UploadRecord) -> dict:
     image_url = url_for("static", filename=f"images/{artifacts.image_filename}")
-    importance_url = (
-        url_for("static", filename=f"images/{artifacts.importance_filename}")
-        if artifacts.importance_filename
-        else None
-    )
     return {
         "original_filename": artifacts.original_filename,
         "generated_at": format_app_datetime(record.upload_time),
         "image_url": image_url,
-        "importance_url": importance_url,
         "excel_url": url_for("main.download_file", record_id=record.id, file_type="prediction"),
         "result_url": url_for("main.result_page"),
         "sample_count": int(artifacts.sample_count),
@@ -439,7 +433,6 @@ def predict():
         {
             "message": "预测成功",
             "image_url": last_result["image_url"],
-            "importance_url": last_result["importance_url"],
             "excel_url": last_result["excel_url"],
             "result_url": last_result["result_url"],
             "sample_count": last_result["sample_count"],