Shipment Advice Reception Planner

This module extends the shipment advice feature for incoming shipments. On an incoming shipment advice in draft state, a new "Plan Reception" button appears next to the planned moves button.

Clicking it opens a wizard where you choose the stock moves to plan. The wizard only shows incoming moves that are ready (assigned), not yet linked to a shipment advice, and belonging to the same warehouse; you can also filter by the partner you receive from. For each selected move you can adjust the "Receiving Qty"; if it is lower than the demanded quantity, the move is split so only the chosen quantity is planned.

Business rules enforced by the code: - The shipment advice must be incoming and must have an arrival date before planning; otherwise an error is shown. - The receiving quantity must be greater than zero and cannot exceed the demand. - When the arrival date of an incoming shipment advice is changed, the planned moves' dates are updated automatically (except done or cancelled moves). - When unplanning moves from an incoming shipment advice, the moves are merged back together.

The module also adds an "Origin Purchase" column on stock moves, showing the purchase order name and origin, and makes it searchable in the moves search view.