[Filter]_CraftDesk

Space target filter for crafting at the picked desk.

• If self has an in-progress CraftObject attached to this desk (HandCraft_Continue path), returns only the chair connected to the slot the CraftObject occupies. (BL-50472: prevents wrong-seat selection on multi-chair tables)
• For HandcraftTable01 template desks, returns occupiable interaction slots on the desk (stand crafting).
• For all other desks, returns selectable sit targets from connected chair slots.