morfTemplateService - v0.4.3

Fixed

• HTTP large-response truncation in HttpServer::reply(). The method closed the connection
  without draining the write buffer: any response beyond the socket buffer (~20 KB) reached the
  client truncated. It now waits for bytesToWrite() to reach zero (via waitForBytesWritten,
  with a guard timeout) before closing. Found in morfAnalytics and fixed here, in the pattern,
  the source of truth for the skeleton reused across the parc.
• Resynced the vendored morfBeacon copy to 0.6.1.