refactor: rename command plugin to exec

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

src/meta_plugin/command.rs

@@ -5,7 +5,7 @@ use which::which;
 
 use crate::meta_plugin::{MetaPlugin, MetaPluginResponse, MetaPluginType};
 
-pub struct MetaPluginCommand {
+pub struct MetaPluginExec {
     pub program: String,
     pub args: Vec<String>,
     pub supported: bool,
@@ -18,9 +18,9 @@ pub struct MetaPluginCommand {
 }
 
 // Manual Debug implementation because Box<dyn Write> doesn't implement Debug
-impl std::fmt::Debug for MetaPluginCommand {
+impl std::fmt::Debug for MetaPluginExec {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        f.debug_struct("MetaPluginCommand")
+        f.debug_struct("MetaPluginExec")
             .field("program", &self.program)
             .field("args", &self.args)
             .field("supported", &self.supported)
@@ -35,7 +35,7 @@ impl std::fmt::Debug for MetaPluginCommand {
 }
 
 
-impl MetaPluginCommand {
+impl MetaPluginExec {
     pub fn new(
         program: &str, 
         args: Vec<&str>, 
@@ -43,7 +43,7 @@ impl MetaPluginCommand {
         split_whitespace: bool,
         _options: Option<std::collections::HashMap<String, serde_yaml::Value>>,
         outputs: Option<std::collections::HashMap<String, serde_yaml::Value>>,
-    ) -> MetaPluginCommand {
+    ) -> MetaPluginExec {
         let program_path = which(program);
         let supported = program_path.is_ok();
         
@@ -64,7 +64,7 @@ impl MetaPluginCommand {
             }
         }
         
-        MetaPluginCommand {
+        MetaPluginExec {
             program: program_path.map_or_else(|_| program.to_string(), |p| p.to_string_lossy().to_string()),
             args: args.iter().map(|s| s.to_string()).collect(),
             supported,
@@ -79,7 +79,7 @@ impl MetaPluginCommand {
     
 }
 
-impl MetaPlugin for MetaPluginCommand {
+impl MetaPlugin for MetaPluginExec {
     fn is_supported(&self) -> bool {
         self.supported
     }
@@ -193,7 +193,7 @@ impl MetaPlugin for MetaPluginCommand {
     }
 
     fn meta_type(&self) -> MetaPluginType {
-        MetaPluginType::Command
+        MetaPluginType::Exec
     }
     
     fn program_info(&self) -> Option<(&str, Vec<&str>)> {