Background sync interval not awaited - overlapping syncs possible

[Retengart]

Problem

setInterval callback doesn't await handleSyncIndex().

Current Behavior

// sync.ts:136-139
const syncInterval = setInterval(() => {
    console.log('[SYNC-DEBUG] Executing scheduled periodic sync');
    this.handleSyncIndex(); // Not awaited!
}, 5 * 60 * 1000);

Impact

If sync takes >5 minutes, next interval fires while previous still running. The isSyncing flag helps but doesn't prevent queueing.

Expected Behavior

Either:

1. Await completion before scheduling next
2. Use setTimeout recursively instead of setInterval
3. Skip interval if previous sync still running

Location

• packages/mcp/src/sync.ts:136-139