refactor: merge get_meta_plugin_with_config into get_meta_plugin

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/services/meta_service.rs

@@ -77,7 +77,7 @@ impl MetaService {
                     (None, None)
                 };
                 
-                get_meta_plugin_with_config(meta_plugin_type.clone(), options, outputs)
+                crate::meta_plugin::get_meta_plugin(meta_plugin_type.clone(), options, outputs)
             })
             .collect();