v0.2.1

• fix: refresh selected window snapshots
• fix: fit camera overlays within capture bounds
• fix: clamp trim ranges for short recordings
• fix: fetch release history for changelogs
• fix: require numeric release versions
• fix: finalize recordings when quitting during startup
• fix: pass manual validation arguments safely
• fix: restore files after partial replacement
• fix: harden recording and validation workflows
• ci: install just before building