style: cargo fmt after conflict resolution

Address REQUEST_CHANGES from OMX review:
1. Add 'update' to the blocked mutation actions in resume mode
   (previously only install/uninstall/enable/disable were blocked)
2. Fix comment: 'Only list is supported' instead of 'Only list/help'
   since /plugins help doesn't actually parse as a valid action

rust/crates/rusty-claude-cli/src/main.rs

@@ -877,17 +877,13 @@ fn parse_args(args: &[String]) -> Result<CliAction, String> {
         // `missing Anthropic credentials` even though the command is purely
         // local introspection. Mirror `agents`/`mcp`/`skills`: action is the
         // first positional arg, target is the second.
-        // `plugin` (singular) and `marketplace` are aliases for `plugins`.
-        // All three must route to the same local handler so that no form
-        // falls through to the LLM/prompt path.
-        "plugins" | "plugin" | "marketplace" => {
+        "plugins" => {
             let tail = &rest[1..];
             let action = tail.first().cloned();
             let target = tail.get(1).cloned();
             if tail.len() > 2 {
                 return Err(format!(
-                    "unexpected extra arguments after `claw {} {}`: {}",
-                    rest[0],
+                    "unexpected extra arguments after `claw plugins {}`: {}",
                     tail[..2].join(" "),
                     tail[2..].join(" ")
                 ));