fix: support comma-separated meta plugin types and reorganize read time/rate plugins

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

src/modes/common.rs

@@ -175,22 +175,29 @@ pub fn cmd_args_compression_type(cmd: &mut Command, args: &Args) -> CompressionT
 }
 
 pub fn cmd_args_meta_plugin_types(cmd: &mut Command, args: &Args) -> Vec<MetaPluginType> {
-    let meta_plugin_names = args
-        .item
-        .meta_plugins
-        .clone();
-
     let mut meta_plugin_types = Vec::new();
+    
+    // Handle comma-separated values in each meta_plugins argument
+    for meta_plugin_names_str in &args.item.meta_plugins {
+        let meta_plugin_names: Vec<&str> = meta_plugin_names_str.split(',').collect();
+        
         for name in meta_plugin_names {
-        let meta_plugin_type_opt = MetaPluginType::from_str(&name);
+            let trimmed_name = name.trim();
+            if trimmed_name.is_empty() {
+                continue;
+            }
+            
+            let meta_plugin_type_opt = MetaPluginType::from_str(trimmed_name);
             if meta_plugin_type_opt.is_err() {
                 cmd.error(
                     ErrorKind::InvalidValue,
-                format!("Unknown meta plugin type: {}", name),
+                    format!("Unknown meta plugin type: {}", trimmed_name),
                 )
                 .exit();
             }
             meta_plugin_types.push(meta_plugin_type_opt.unwrap());
         }
+    }
+
     meta_plugin_types
 }