feat: initialize HostBooking and ConveyorDispo code structure and document project processes and database schema

03_Realisierung/Informationen zu den Prozessen/Process HostBooking.md

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+## Overview
+This process receives messages via the HostMessageFromWmsService and processes them.
+
+## Message *AcknowledgeTransportCompleted*
+The process finishes corresponding OrdersHost, OrdersConveyor, and OrdersMiniload entries (if they exist) and sends TordDelete telegrams to the affected devices.
+
+## Message *CancelRequestForTransportOrder*
+The process cancels corresponding OrdersHost, OrdersConveyor, and OrdersMiniload entries (if they exist) and sends TordDelete telegrams to the affected devices.
+
+## Message *ChangePtlSignalState*
+This is essentially forwared to the PLC: switch a PTL light on or off.
+
+## Message *DepartureNotification*
+Upon receipt, the process creates an OrdersHost entry or starts an existing one. Also, a corrseponding signal is sent to the PLC.
+
+## Message *HuChange*
+This message signals changes to a HU (e.g. type, the abc area, if it is empty, the subdivision type, and others)
+
+## Message *RequestEmptyHuReport*
+Depending on the request type, the WCS collects information on empty HU on the conveyor or in storage and replies with an EmptyHuReport.
+
+## Message *SupplyRequestEmptyHu*
+For this message, the process creates OrdersHost entries for the requestes HU type (not with explicit HU numbers but stand-in names). Process ConveyorDispo later selects the HU and starts the order.
+
+## Message *UnsupportedHostMessage*
+is a stand.in message for unknown message types.