[FEATURE] Separate skills and slash commands in /context output

Problem

When using the /context command, skills and slash commands are bundled together under a single category called "Skills and slash commands". This makes it harder to understand what's loaded because skills and slash commands serve different purposes:

• Skills are loaded contextually based on trigger descriptions and provide domain knowledge
• Slash commands are user-invocable actions that execute specific workflows

Combining them obscures the distinction and makes it less clear what each item does.

<img width="390" height="333" alt="Image" src="https://github.com/user-attachments/assets/96fee935-c500-4277-994c-3ea0b9909aa0" />

Proposed solution

Split "Skills and slash commands" into two separate categories in the /context output:

• Skills - Lists loaded skills with their trigger descriptions
• Slash commands - Lists available slash commands

This would make the context breakdown clearer and help users understand what's available at a glance.

Priority

Medium

Category

CLI commands and flags