[
  {"json":{"row":1,"sku":"DEMO-ZERO","stock":0,"status":"ready","issues":[]}},
  {"json":{"row":2,"sku":"DEMO-OK","stock":12,"status":"ready","issues":[]}},
  {"json":{"row":3,"sku":"DEMO-MISSING","stock":null,"status":"review","issues":["invalid_stock"]}},
  {"json":{"row":4,"sku":"DEMO-UNIT","stock":null,"status":"review","issues":["invalid_stock"]}},
  {"json":{"row":5,"sku":"DEMO-DECIMAL","stock":null,"status":"review","issues":["invalid_stock"]}},
  {"json":{"row":6,"sku":"DEMO-NEGATIVE","stock":null,"status":"review","issues":["invalid_stock"]}},
  {"json":{"row":7,"sku":null,"stock":4,"status":"review","issues":["missing_sku"]}}
]