feat(shell): enhance regex validators to match on entire string (#1603)

plugins/shell/src/lib.rs

@@ -148,8 +148,9 @@ fn open_scope(open: &config::ShellAllowlistOpen) -> scope::OpenScope {
             Some(Regex::new(r"^((mailto:\w+)|(tel:\w+)|(https?://\w+)).+").unwrap())
         }
         config::ShellAllowlistOpen::Validate(validator) => {
+            let regex = format!("^{validator}$");
             let validator =
-                Regex::new(validator).unwrap_or_else(|e| panic!("invalid regex {validator}: {e}"));
+                Regex::new(&regex).unwrap_or_else(|e| panic!("invalid regex {regex}: {e}"));
             Some(validator)
         }
     };