Rework the seed catalog from the cleaned live DB: dedupe Dell vendor/model rows, strip vendor names out of model numbers, add missing models, assign model types across printer and equipment lines, add a Controller type, and split a mashup HP LaserJet row into six real models. Now 44 vendors, 172 models, 173 modelsupplies. Also document that assets.csv needs its subtype file to appear in typed list views, and ignore devnotes/ scratch.
Adds a concise native-CSV import guide covering exact headers, required columns, foreign-key-by-name resolution, import order, and the do-not-edit rule for Azure/Thor exports. Also clarifies the Import Site Assets Azure card that Bulk operations lives in the top command bar of the group Members page, matching the Entra UI.
