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arkonandClaude Opus 4.6
746004c461
Adds ephemeral single-use QR tokens for passwordless tunnel login. Scanning the QR auto-authenticates; bare tunnel URL requires Basic Auth. Backend: - TunnelManager: 60s token rotation, 90s grace, rejection-sampled 6-char base62 short codes, Map-based O(1) lookup, SVG caching, global rate limit - Auth middleware: /q/ bypass, separate qrAuthFailures counter, enhanced AuthSessionRecord with device context (ip, ua, createdAt, method) - Routes: GET /q/:code (consume + cookie + redirect), POST /api/tunnel/qr/ regenerate, POST /api/auth/revoke, updated GET /api/tunnel/qr with cache - SSE: tunnel:qrRotated, tunnel:qrRegenerated, tunnel:qrAuthUsed events - Audit: qr_auth lifecycle log entries Frontend: - Auto-refresh QR via inline SVG in SSE (fallback fetch if absent) - 60s countdown indicator on QR badge - Regenerate QR button - QRLjacking detection toast with [Revoke All] action button (10s duration) - showToast enhanced with optional duration and action button support Fixes: - /api/logout now invalidates server-side session token (was only clearing browser cookie, leaving token valid for replay) Tests: 20 new tests in test/qr-auth.test.ts covering token lifecycle, bias check, rate limiting, SVG caching, and full server integration. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>