buildNip98Token checked window.nostr before secretKeyHex, so
"Generate New Identity" would sign with the browser extension's key
after saving. Now explicit keys always take priority over extensions.
Also made setup flow mode-aware: webhook users get BOTFIGHTS-WEBHOOK.md,
polling users get BOTFIGHTS-POLLING.md with matching copy prompts.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace insecure raw-pubkey auth with cryptographic NIP-98 signed
requests and server-issued JWT sessions. Logout now fully clears
all state including nsec. Add yellow "Use Nostr Signer" button
for Amber/NIP-07 remote signers.
- Server: JWT middleware (HMAC-SHA256, 24h expiry), NIP-98 verification
- Server: POST /api/auth/nostr/session endpoint
- Frontend: NIP-98 token builder + authFetch wrapper with JWT Bearer
- Frontend: All authenticated API calls use authFetch
- Security: logout clears JWT, pubkey, bot, nsec, and profile pic
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
