feat: add default outputs to meta plugins

Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>

src/meta_plugin/system.rs

@@ -62,6 +62,10 @@ impl MetaPlugin for CwdMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["cwd".to_string()]
+    }
 }
 
 #[derive(Debug, Clone, Default)]
@@ -113,6 +117,10 @@ impl MetaPlugin for UidMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["uid".to_string()]
+    }
 }
 
 #[derive(Debug, Clone, Default)]
@@ -167,6 +175,10 @@ impl MetaPlugin for UserMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["user".to_string()]
+    }
 }
 
 #[derive(Debug, Clone, Default)]
@@ -218,6 +230,10 @@ impl MetaPlugin for GidMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["gid".to_string()]
+    }
 }
 
 #[derive(Debug, Clone, Default)]
@@ -272,6 +288,10 @@ impl MetaPlugin for GroupMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["group".to_string()]
+    }
 }
 
 #[derive(Debug, Clone, Default)]
@@ -326,6 +346,10 @@ impl MetaPlugin for ShellMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["shell".to_string()]
+    }
 }
 
 #[derive(Debug, Clone, Default)]
@@ -380,6 +404,10 @@ impl MetaPlugin for ShellPidMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["shell_pid".to_string()]
+    }
 }
 
 #[derive(Debug, Clone, Default)]
@@ -431,6 +459,10 @@ impl MetaPlugin for KeepPidMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["keep_pid".to_string()]
+    }
 }
 
 #[derive(Debug, Clone, Default)]
@@ -485,6 +517,10 @@ impl MetaPlugin for HostnameMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["hostname".to_string()]
+    }
 }
 
 #[derive(Debug, Clone, Default)]
@@ -557,4 +593,8 @@ impl MetaPlugin for FullHostnameMetaPlugin {
     fn outputs_mut(&mut self) -> &mut std::collections::HashMap<String, serde_yaml::Value> {
         &mut self.outputs
     }
+    
+    fn default_outputs(&self) -> Vec<String> {
+        vec!["full_hostname".to_string()]
+    }
 }