- Connect to peer synchronously (perm=false, 30s timeout) and check the
result before opening the channel; previously the connect was fired
with perm=true (queued in background, returns immediately) and its
result ignored, so the open failed with 'peer is not online'
- Let LND channel/peer errors through the error sanitizer so the UI
shows the real cause instead of 'Check server logs'
- Add private (unannounced) channel option to backend and UI — some
peers (e.g. Olympus/ZEUS LSP) reject public channel opens
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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