fix(activity): prepend https:// to PDS host URL in background scan trigger (#148)

src/routes/profile.ts

···
 
       // Trigger background PDS scan if data is stale (fire-and-forget)
       if (valkey && pdsHost) {
-        triggerRefreshIfStale(db, valkey, profile.did, pdsHost);
+        triggerRefreshIfStale(db, valkey, profile.did, `https://${pdsHost}`);
       }
 
       // Fetch Standard publications from PDS and merge with Sifa publications