arbit/docs/domain-model.md

Domain Model

Core entities

• ItemTemplate: reusable defaults for common purchase types
• Item: individual acquired object being tracked for resale
• PriceEstimate: a resale suggestion from comps or manual input
• ItemNote: internal notes and condition updates
• ItemPhoto: images attached to the item

Item lifecycle

1. Created from a template or from scratch
2. Marked in stock
3. Optionally listed
4. Sold or removed from inventory

Tracking rules

• The creator of the item is stored on the record and shown in item views
• Profit is based on sold price minus purchase price, fees, and shipping cost
• Estimated resale price is only a suggestion until sold data exists