[FEATURE] /usage should auto-update

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

for /usage, users have to dismiss and re-open it to see updated stats.

Proposed Solution

/usage dialog should auto-refresh

Alternative Solutions

_No response_

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_