v0.3.3 — README overhaul

📖 Documentation-only release. Comprehensive README refresh showcasing every feature shipped since 0.2.0:

• 🎯 Tap-to-inspect on Fabric + legacy
• 💅 Live style editing with StyleSheet resolution
• 🔍 Preview mode with ✓ commit and ↺ cancel
• ↶↷ Undo / Redo (50-deep)
• ➕ Add property picker (~80 RN styles)
• 📜 Auto-scroll on select
• 💾 Selection persistence across reloads
• 🚀 npx rn-studio init zero-config setup

See the rendered README at https://github.com/dgutierrezd/rn-studio or https://www.npmjs.com/package/rn-studio.