Feature request: customizable skill display order in / menu

Feature Request

Is your feature request related to a problem?

When typing / to invoke skills, the menu displays skills in an order that cannot be customized. Frequently used automation skills (e.g., cron-triggered bookmark processing) appear at the top, pushing manually-invoked skills (like session-start / session-end) further down.

Describe the solution you'd like

Add an optional order or priority field to SKILL.md frontmatter that controls the display position in the / skill menu.

Example:

---
name: session-start
description: Session start protocol
order: 1
---

Lower order values appear first. Skills without order are sorted after ordered skills using the current default logic.

Describe alternatives you've considered

• Typing partial names (e.g., /ses) to filter — works but adds friction for daily-use skills
• Renaming skill directories with numeric prefixes (e.g., 01-session-start) — changes the invocation name, poor UX

Additional context

In our setup, we have 14+ user-invocable skills. The two most important (session-start, session-end) are buried below automation skills that happen to have higher usage frequency. A simple numeric sort field in frontmatter would solve this cleanly.