v0.1.4 alpha DMG

Alpha macOS DMG for local testing. This build improves the permissions onboarding screen: Accessibility is clearly marked required, Input Monitoring is optional/recommended, Continue only requires Accessibility, and the screen includes guidance for manually adding /Applications/Contextual Mac Translator.app when macOS does not list it automatically. SHA256: 0c67407aa6ea8926fc02b1adc1738ba638c0235871e6b871c50512c480ba53fc