Adds an 'Artikelfeld' action in the aspect import UI alongside skip/match/create.
Aspects like 'Marke' and 'Herstellernummer' auto-detect to manufacturer/modelNumber
via ARTICLE_FIELD_ALIASES. Mappings are persisted as a JSON column on ArticleType.
EbayAdapter.buildAspects() now reads these mappings and populates them from the
article's direct fields when building eBay listing aspects.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
eBay adapter covers OAuth, inventory API, fulfillment API, taxonomy
service and webhook signature verification. Frappe ERP adapter wraps
the Frappe HTTP client for order/invoice sync.
Includes CustomerResolver, InvoiceMailer, and the EbayWebhookController
for inbound eBay marketplace notifications.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
