Add ntfy notification system and enhance logging for error handling

ntfy_utils.py

@@ -0,0 +1,65 @@
+# ntfy_utils.py
+import requests
+import config
+
+def send_ntfy(message, title="数据库同步消息", priority="default", tags=None):
+    """
+    向加密的 ntfy 服务器发送消息
+    """
+    conf = config.NTFY_CONFIG
+    if not conf.get('enabled', False):
+        return
+
+    # 确保 URL 正确（末尾不要多余斜杠）
+    server_url = conf['server_url'].rstrip('/')
+    url = f"{server_url}/{conf['topic']}"
+    
+    # 构造请求头
+    headers = {
+        "Title": title.encode('utf-8'),
+        "Priority": priority,
+        "Tags": ",".join(tags) if tags else ""
+    }
+
+    # --- 核心：配置秘钥认证 ---
+    token = conf.get('token')
+    if token:
+        # ntfy 使用 Bearer Token 模式
+        headers["Authorization"] = f"Bearer {token}"
+
+    try:
+        # 发送请求
+        response = requests.post(
+            url, 
+            data=message.encode('utf-8'), 
+            headers=headers, 
+            timeout=10
+        )
+        
+        # 针对认证失败的处理
+        if response.status_code == 401:
+            print("ntfy 认证失败：Token 无效")
+        elif response.status_code == 403:
+            print("ntfy 权限不足：该 Token 无权发布消息")
+        
+        response.raise_for_status()
+    except Exception as e:
+        print(f"发送 ntfy 通知失败: {e}")
+
+def send_error(msg):
+    """便捷方法：发送错误通知"""
+    send_ntfy(
+        message=str(msg),
+        title="❌ 同步任务错误",
+        priority=config.NTFY_CONFIG['priority']['error'],
+        tags=["warning", "database"]
+    )
+
+def send_critical(msg):
+    """便捷方法：发送严重崩溃通知"""
+    send_ntfy(
+        message=str(msg),
+        title="🔥 同步服务崩溃",
+        priority=config.NTFY_CONFIG['priority']['critical'],
+        tags=["skull", "critical"]
+    )