fix: resolve dify init and douyu session errors

plugins/dify/main.py

@@ -98,6 +98,8 @@ class DifyPlugin(MessagePluginInterface):
         self._commands = dify_config.get("commands", ["ai", "dify", "聊天", "AI"])
         self.command_format = dify_config.get("command-tip", "聊天 请求内容")
         self.enable = dify_config.get("enable", True)
+        raw_api_key = dify_config.get("api-key", "")
+        raw_base_url = dify_config.get("base-url", "")
         self.price = dify_config.get("price", 0)
         self.admin_ignore = dify_config.get("admin_ignore", False)
         self.whitelist_ignore = dify_config.get("whitelist_ignore", False)
@@ -108,8 +110,8 @@ class DifyPlugin(MessagePluginInterface):
                 "backend": dify_config.get("backend", ""),
                 "provider": "dify",
                 "mode": "workflow",
-                "api-key": self.api_key,
-                "base-url": self.base_url,
+                "api-key": raw_api_key,
+                "base-url": raw_base_url,
                 "endpoint": "workflows/run",
                 "response_mode": "blocking",
                 "request_timeout": 40,