fix(i18n): named-argument messages no longer print a stray placeholder

Eight messages with %{name} arguments went through the positional
formatter, which printed "%3" for a count, and their catalog entries
held %__ocs_fmt_N__ where the named form is expected. They take named
arguments now, and the entries — and those of the selection and HATCHEDIT
prompts with the same fault — use __ocs_arg_<name>__.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/app/command_driver/solid3d.rs

@@ -176,7 +176,7 @@ impl OpenCADStudio {
             }
             self.tabs[i].dirty = true;
             self.command_line.push_output(
-                crate::tf!(
+                crate::t!(
                     "EXTRUDE: created %{created} object(s); %{failed} source(s) could not be extruded.",
                     created = created_handles.len(),
                     failed = failed
@@ -427,7 +427,7 @@ impl OpenCADStudio {
             }
             self.tabs[i].dirty = true;
             self.command_line.push_output(
-                crate::tf!(
+                crate::t!(
                     "REVOLVE: created %{created} object(s); %{failed} source(s) could not be revolved.",
                     created = created_handles.len(),
                     failed = failed