Bootstrap copied BFF and local accounts with public Sendico contracts (#34)

backend/contracts/sendico/models/common/describable.yaml

@@ -0,0 +1,16 @@
+components:
+  schemas:
+    Describable:
+      description: Common naming metadata for user-defined entities.
+      type: object
+      additionalProperties: false
+      required:
+        - name
+      properties:
+        name:
+          description: Human-readable name of the entity.
+          type: string
+        description:
+          description: Optional free-form description of the entity.
+          type: string
+          nullable: true

backend/contracts/sendico/models/common/money.yaml

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+components:
+  schemas:
+    Money:
+      description: Monetary value represented by a decimal amount and ISO currency code.
+      type: object
+      additionalProperties: false
+      required:
+        - amount
+        - currency
+      properties:
+        amount:
+          type: string
+          description: Decimal string amount.
+          example: '125.50'
+        currency:
+          description: ISO 4217 currency code for the provided amount.
+          type: string
+          example: USD

backend/contracts/sendico/models/common/pagination.yaml

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+components:
+  schemas:
+    CursorPageResponse:
+      description: Cursor-based pagination metadata returned with list responses.
+      type: object
+      additionalProperties: false
+      properties:
+        next_cursor:
+          description: Opaque cursor to request the next page; omitted when no more items exist.
+          type: string