细节修改

app.py

@@ -4,7 +4,7 @@ Flask 主应用
 """
 import os
 from datetime import datetime
-from flask import Flask, render_template
+from flask import Flask, render_template, Response
 from flask_cors import CORS
 from apscheduler.schedulers.background import BackgroundScheduler
 import pytz
@@ -43,6 +43,12 @@ def index():
     return render_template('index.html')
 
 
+@app.route('/favicon.ico')
+def favicon():
+    """网站图标（返回空响应避免404）"""
+    return Response(status=204)
+
+
 # ==================== 定时任务 ====================
 
 def scheduled_job():