Berth 2.0.3

Berth 2.0.3 release.\n\nHighlights:\n- Fix Electron app recovery when reusing an existing Berth server.\n- Preserve task creation context and improve compact task cards.\n- Fix Coco history resume, image paste ordering, launch cwd fallback, and session title sampling.\n\nInstall:\n- npm: npm install -g @corusco/berth && berth skill install && berth start\n- macOS: download the DMG and drag Berth into Applications. This macOS build is ad-hoc signed and not notarized; first launch may require right-click → Open or removing quarantine.