chore: remove douyu local llm secrets

plugins/douyu/config.toml

@@ -15,14 +15,6 @@ daily_report_max_length = 1800
 daily_report_send_image = true
 
 [Douyu.report_api]
-provider = "openai_compatible"
-api_base_url = "http://192.168.2.240:3000/v1"
-endpoint = "chat/completions"
-api_key = "sk-hC6WMLAsTdItpywyrYdxT6pQ4E7NARGbUKuPWRH0zMheen9e"
-model = "gpt-5.4"
-timeout_seconds = 45
+backend = "openai_compatible_ai_auto_response"
 temperature = 0.3
 max_tokens = 900
-stream = true
-max_retries = 3
-retry_delay_seconds = 1.0