Update to Kreel

{
  "name": "kreel-product-breakdown",
  "description": "Sales by product SKU for a given period.",
  "included_files": [],
  "skill_md_contents": "---\nname: kreel-product-breakdown\ndescription: \"Sales by product SKU for a given period.\"\n---\n\nInputs: `<date_range>`. Collect any missing value from the user, then substitute it wherever the placeholder appears below.\n\nIf more than one brand is reachable, call `list_brands` first and pass `brand` on every call.\n\nRank products by refund-correct net merchandise revenue over <date_range>. Call `get_performance` with platform='shopify', entity_type='product', that date range, metrics=['units', 'revenue'], limit=10, and compare_to_previous=True. Each row already contains the product id, product title, units, and net revenue, so do not make a separate catalog lookup. Revenue honors the Brand's Revenue Basis and sales-channel policy; shipping is excluded because it cannot be allocated defensibly to a product. Keep refund-only and deleted products visible. Report the top 10 and flag products whose net revenue dropped more than 20% versus the immediately preceding equal-length period using each row's vs_previous block.\n"
}