Initial commit: mini-erp (backend FastAPI + frontend React/Vite)

Base para el flujo de ramas por cliente.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

mini-backend/test/sap-aberio/Items.yml

@@ -0,0 +1,14 @@
+info:
+  name: Items
+  type: http
+
+http:
+  method: GET
+  url: https://192.168.9.3:50000/b1s/v1/Items
+  auth: inherit
+
+settings:
+  encodeUrl: true
+  timeout: 0
+  followRedirects: true
+  maxRedirects: 5