SlayZone 0.3.0

Git hub command center

🚀 Pull request dashboard — Full PR tab with create/link, merge controls, diff view, comments timeline, and mermaid diagrams.
🚀 Branch & worktree graph — Visual branch/worktree tabs with graph view, actions, and PR status at a glance.
🚀 Worktree tab grouping — Task tabs grouped by worktree with colored borders for quick identification.
🚀 Git push/pull controls — Push and pull directly from the git panel with remote URL display.
🚀 Configurable rate-limit bars — Customize usage bars with support for custom providers.
🚀 Per-view panel toggles — Configure which panels show on home vs task views independently.
🐛 Main-thread freezes eliminated — Git and GitHub CLI operations no longer block the UI.
🐛 Layout shift on tab switch — Fixed xterm scrollbar leak and layout jump when switching tabs.