v0.4.0

What's Changed

• feat: SaveWorld + pre-stop backup with stop progress UI by @gabomarin in #82
• UI density: Compact / Comfortable preference (#62) by @gabomarin in #83
• feat: atomic servers:restart with fail-hard pre_restart backup (#13) by @gabomarin in #97
• Prep: migrate JSX.Element to ReactElement (#98) by @gabomarin in #108
• Migrate to React 19.2 and Mantine 9 (#98) by @gabomarin in #109
• Spike proof: React 19.2 + Mantine 9 (#71) by @gabomarin in #99
• Safe update: contract cleanup and real-host validation (#14) by @gabomarin in #110
• Simplify verbose operator-facing lock and status copy (#111) by @gabomarin in #112
• release: v0.4.0 by @gabomarin in #113

Full Changelog: v0.3.2...v0.4.0