fix: improve offline sync with better tracking and logging

- Track events explicitly when created in offline mode
- Mark highlights as offline-created when isLocalOnly is true
- Add extensive debug logging throughout sync process
- Increase query timeout from 5s to 10s for better reliability
- Add 2-second delay before syncing to allow relays to connect
- Log relay state transitions and event counts
- Log each event received during sync query
- Should help diagnose and fix offline sync issues

src/services/highlightCreationService.ts

@@ -8,6 +8,7 @@ import { RELAYS } from '../config/relays'
 import { Highlight } from '../types/highlights'
 import { UserSettings } from './settingsService'
 import { areAllRelaysLocal } from '../utils/helpers'
+import { markEventAsOfflineCreated } from './offlineSyncService'
 
 // Boris pubkey for zap splits
 const BORIS_PUBKEY = '6e468422dfb74a5738702a8823b9b28168fc6cfb119d613e49ca0ec5a0bbd0c3'
@@ -142,6 +143,11 @@ export async function createHighlight(
     eventId: signedEvent.id
   })
   
+  // If we're in local-only mode, mark this event for later sync
+  if (isLocalOnly) {
+    markEventAsOfflineCreated(signedEvent.id)
+  }
+  
   // Convert to Highlight with relay tracking info
   const highlight = eventToHighlight(signedEvent)
   highlight.publishedRelays = actualPublishedRelays