Regenerates icon-192.png, icon-512.png, apple-touch-icon.png, and
favicon-32.png from the official iNTERCEPT logo (favicon.svg) instead
of the placeholder icon.svg. Also replaces icon.svg with the official
logo so the SVG manifest entry is consistent.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Browsers require PNG icons (192x192, 512x512) in the manifest to show
the install prompt. SVG-only manifests are not sufficient. Also adds the
180x180 apple-touch-icon PNG for iOS home screen, bumps SW cache to v3,
and adds scope to the manifest.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
