DorianandClaude Opus 4.6
63cc00fcb6
When window.nostr isn't available (common on mobile Chrome where extensions can't inject), fall back to NIP-55 nostrsigner: intent URIs. This opens Amber/Primal directly to sign a NIP-98 event, then redirects back with the signed event for JWT authentication. - Build nostrsigner: URI with unsigned NIP-98 event + callback URL - Process NIP-55 callback on page mount (extract signed event from URL) - Auto-detect Android to show "SIGN IN WITH AMBER / PRIMAL" label - Reduced window.nostr polling from 3s to 2s before NIP-55 fallback Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>