LLimit v0.3.0

Cursor is now a first-class provider next to Claude and Codex.

• Live Spendings-tab meters: Cursor Models, Other Models, and Grok Bot
• Sign in with agent login; tokens stay in a per-account snapshot
• README and landing page show Claude, Codex, and Cursor together

Apple Silicon build. Ad-hoc signed — first launch may need Right-click → Open, or System Settings → Privacy & Security → Open Anyway.