READ DISPATCH DISPATCH SEND SEND FILE_READER CALLBACK_LOGGER EGRESS_CH_1 EGRESS_CH_2 WEBSOCKET_1 WEBSOCKET_2 Reads chunks from disk. Emits data events. Logs timing & routes payload to active client channels. Dedicated buffer queue for Client 1. Dedicated buffer queue for Client 2. Single-writer socket flushing to Client 1. Single-writer socket flushing to Client 2.