docs: Add Rustdoc to code and comments to grammar file

Co-authored-by: aider (openai/andrew/openrouter/sonoma-sky-alpha) <aider@aider.chat>

src/modes/list.rs

@@ -371,23 +371,4 @@ fn show_list_structured(
             compression: item.compression,
             file_size,
             file_size_formatted,
-            file_path: item_path.into_os_string().into_string().unwrap_or_default(),
-            tags,
-            meta,
-        };
-
-        list_items.push(list_item);
-    }
-
-    match output_format {
-        OutputFormat::Json => {
-            println!("{}", serde_json::to_string_pretty(&list_items)?);
-        }
-        OutputFormat::Yaml => {
-            println!("{}", serde_yaml::to_string(&list_items)?);
-        }
-        OutputFormat::Table => unreachable!(),
-    }
-
-    Ok(())
-}
+            file_path: item_path.into_os_string().into_string