[fadee26]

Summary

Closes #939, #934, #936, #938.

#939 – Navigation focus indicators

• NAV_LINK_CLASSES / navFocus.ts: focus-visible:ring-2 ring-primary (+ offset)
• Applied to header, mobile menu, logo, footer links in App.tsx
• Reusable PrimaryNav, MobileNav, SecondaryNav
• Test: navFocus.test.ts

#934 – Replay protection

• Removed fallbackNonce / lumora-auth-nonce-… path in useWalletAuth
• Challenge must come from authApi.requestWalletNonce
• Doc: docs/WALLET_AUTH_REPLAY.md
• Test: useWalletAuth.replay.test.ts

#936 – Error boundary → server

• New lib/error-tracking.ts → POST /api/monitoring/errors
• reportError also sends message, stack, componentStack, timestamp
• UI stays friendly (no internal details)
• Test: error-tracking.test.ts

#938 – Theme persistence

• Already implemented via persistTheme / ThemeProvider + localStorage
• Test: theme-persistence.test.ts (round-trip)

closes #938
closes #936
closes #934
closes #939

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[ayshadogo]

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