The plugin generated /manifest.webmanifest and the SW precached it, but
nothing in app.html linked to it. Chrome's install criteria require a
discoverable `<link rel="manifest">` in the document head — without it,
the address-bar install affordance never appears and the
beforeinstallprompt event never fires.
iOS Safari's "Add to Home Screen" already works via apple-touch-icon
alone, but with the manifest linked it now uses the manifest's name +
short_name + theme color as well.
All other install criteria were already in place: HTTPS, service worker
with skipWaiting+clientsClaim, 192/512 + maskable icons, iOS meta tags.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Oier Bravo Urtasun
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