First version.

• Button in the profession window that sends the open recipe's reagents to an Auctionator shopping list.
• Only basic reagents; optional, finishing and modifying reagents are left out.
• Subtracts bags, bank, reagent bank and warband bank from what goes on the list.
• Multiplies by the craft count set in the profession window.
• Adds to the list rather than replacing it, leaving rows the player put there untouched.
• Settings panel, slash commands (/cshop), and /cshop diag.
• Craft-count box under the button, kept across sessions, so the list scales to however many you mean to make. The profession window's own count still wins when it has been dialled above 1.
• /cshop preview: need, stock and shortfall for the open recipe, without writing to any list.
• German and English.

Measured on a live 12.1.0 client: Enum.CraftingReagentType.Basic is 1, not the widely repeated 0, and GetAddOnMetadata cannot read Interface — the TOC carries X-Interface for /cshop diag to report, with CI asserting the two agree.