Compare a BigCommerce product with its Dynamics GP item

**Objective:** Compare the BigCommerce product with SKU `{sku}` against the Dynamics GP item with the same item number and report every field where the two systems disagree.

**Step 1: Read the product in BigCommerce**

Call `bigcommerce-get-product` (bigcommerce server) with `sku` set to `{sku}`. If nothing matches, call `bigcommerce-get-product-variant` (bigcommerce server) with `sku` set to `{sku}` and use its `price`, `cost-price` and `inventory-level`. If still nothing, report the SKU as not in BigCommerce and stop. Keep `id`, `name`, `price`, `sale-price`, `cost-price` and `inventory-level`.

**Step 2: Read the item in Dynamics GP**

Call `dynamics-gp-get-iv-item` (dynamics-gp server) with `item-number` set to `{sku}`. If nothing comes back, report the SKU as present in BigCommerce and absent from Dynamics GP and stop. Keep `item-description`, `current-cost` and `standard-cost`. Then call `dynamics-gp-get-iv-item-price` (dynamics-gp server) with `item-number` set to `{sku}` and take `list-price` (if several price levels come back, use the first and say which level it was).

**Step 3: Read stock in Dynamics GP**

Call `dynamics-gp-get-iv-item-quantity` (dynamics-gp server) with `item-number` set to `{sku}`. Keep `quantity-on-hand` and `quantity-allocated`; available stock is on hand minus allocated.

**Step 4: Report**

A table with one row per attribute: `name` vs `item-description`, `price` vs GP `list-price`, `cost-price` vs `current-cost`, `inventory-level` vs available stock. Mark each row Match or Differs with the difference. Treat prices within 0.01 as equal and names as equal ignoring case and spacing.

**Rules & Guidelines:**

* `bigcommerce-*` tools run on the bigcommerce server and `dynamics-gp-*` tools on the dynamics-gp server. Both servers must be connected.
* Where a GP tool takes `company`, pass `{gp-company}` when it is given; if it is empty, omit `company`.
* This prompt is read-only. Never call any `bigcommerce-*-add`, `-update` or `-delete` tool, and never call any `dynamics-gp-*-add`, `-update` or `-note` tool.

**Validation:**

* If GP returns several quantity rows (one per location), sum them and say so.
* Do not say which system is right; report the difference only.