feat: add default implementations for outputs and options methods

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

src/meta_plugin.rs

@@ -40,6 +40,22 @@ impl BaseMetaPlugin {
     pub fn new() -> Self {
         Self::default()
     }
+    
+    pub fn outputs(&self) -> &std::collections::HashMap<String, serde_yaml::Value> {
+        &self.outputs
+    }
+    
+    pub fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
+        &mut self.outputs
+    }
+    
+    pub fn options(&self) -> &std::collections::HashMap<String, serde_yaml::Value> {
+        &self.options
+    }
+    
+    pub fn options_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
+        &mut self.options
+    }
 }
 
 impl MetaPlugin for BaseMetaPlugin {