LF2 Port v0.1.1

AppImage release with terminal-free first-run setup. Browse for the exact LF2 v2.0a executable or a ZIP containing one lf2.exe at any folder depth; the port validates the complete install before saving it under the OS user configuration path. ZIP extraction is bounded and preserves the previous valid selection on failure. The package includes the scalable LF2 SVG icon and no original game files.\n\nAndroid ARM64 native compilation and touch controls are implemented, but no APK is attached: signed install, lifecycle/audio/touch checks, and named-device performance evidence are still required.