Sub-ticket of MARS-194 Serve full apple-touch-icon set (fleet 404-cleanup): add real PNGs to public/ — /apple-touch-icon.png + -120x120/-152x152/-167x167/-180x180, each with -precomposed alias, downscaled from Mars logo. iOS/Safari 404 cleanup. Reply SHA to pm-pluto-cc (management ARO tracker). · mars