fix: resolve missing imports and enum map coverage for ReadTime and ReadRate plugins

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

src/meta_plugin.rs

@@ -11,7 +11,7 @@ pub mod program;
 pub mod digest;
 
 use crate::meta_plugin::program::MetaPluginProgram;
-use crate::meta_plugin::digest::DigestSha256MetaPlugin;
+use crate::meta_plugin::digest::{DigestSha256MetaPlugin, ReadTimeMetaPlugin, ReadRateMetaPlugin};
 
 use strum::IntoEnumIterator;
 
@@ -54,6 +54,8 @@ lazy_static! {
             let program = MetaPluginProgram::new("md5sum", vec![], "digest_md5".to_string(), true);
             if program.supported { Some(program) } else { None }
         }
+        MetaPluginType::ReadTime => None,
+        MetaPluginType::ReadRate => None,
     };
 }