[WIP] Add support for 3-2-2 comma rule

[Codex]

• Understand current number formatting defaults and attempt baseline tests (blocked by missing dependencies)
• Implement configurable 3-2-2 digit grouping across server/client formatting and settings UI
• Add/update automated tests and rerun targeted suites (tests added; runs blocked by missing Clojure/CLJS tooling)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Add support for 3-2-2 comma rule.</issue_title>
<issue_description>Currently Numbers are always displayed in 3-3 comma rule. Add support for adding 3-2-2 comma rule.

Also check if it's possible to configure an instance to use 3-2-2 comma rule</issue_description>

Comments on the Issue (you are @codex[agent] in this section)

• Fixes Add support for 3-2-2 comma rule. #2