Siavash Sameni 6c49d7436f feat(ui): direct-only mode setting (no relay fallback) ...

New toggle in Settings → "Direct-only mode (no relay fallback)":
- Default: OFF (normal behavior, relay fallback on P2P failure)
- When ON: connect returns error if P2P fails, with full
  candidate_diags in the debug log showing why each candidate
  failed. Call never falls back to relay.

Useful for testing NAT traversal — you see the exact failure
reason instead of the call silently working through relay.

Wired end-to-end:
- Settings.directOnly persisted in localStorage
- Passed as directOnly param to Rust connect command
- connect:path_negotiated shows direct_only flag
- connect:direct_only_failed emits on failure with diags

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-14 16:04:45 +04:00

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