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

backend/contracts/sendico/models/auth/client_refresh_token.yaml

@@ -0,0 +1,15 @@
+components:
+  schemas:
+    ClientRefreshToken:
+      description: Refresh token bound to a specific client and device session.
+      allOf:
+        - $ref: ./session_identifier.yaml#/components/schemas/SessionIdentifier
+        - type: object
+          description: Refresh-token payload associated with the session identifier.
+          additionalProperties: false
+          required:
+            - token
+          properties:
+            token:
+              description: Long-lived token used to obtain a new access token.
+              type: string

backend/contracts/sendico/models/auth/login_data.yaml

@@ -0,0 +1,21 @@
+components:
+  schemas:
+    LoginData:
+      description: Credentials and optional locale used during user sign-in.
+      type: object
+      additionalProperties: false
+      required:
+        - login
+        - password
+      properties:
+        login:
+          description: User login identifier, represented as an email address.
+          type: string
+          format: email
+        password:
+          description: User password submitted for authentication.
+          type: string
+          format: password
+        locale:
+          description: Optional locale preference provided at login time.
+          type: string

backend/contracts/sendico/models/auth/session_identifier.yaml

@@ -0,0 +1,16 @@
+components:
+  schemas:
+    SessionIdentifier:
+      description: Identifies an authentication session by client and device.
+      type: object
+      additionalProperties: false
+      required:
+        - clientId
+        - deviceId
+      properties:
+        clientId:
+          description: Client application identifier associated with the session.
+          type: string
+        deviceId:
+          description: Device/server identifier associated with the client session.
+          type: string

backend/contracts/sendico/models/auth/token_data.yaml

@@ -0,0 +1,17 @@
+components:
+  schemas:
+    TokenData:
+      description: Authentication token payload with expiration metadata.
+      type: object
+      additionalProperties: false
+      required:
+        - token
+        - expiration
+      properties:
+        token:
+          description: Issued authentication token value.
+          type: string
+        expiration:
+          description: RFC 3339 timestamp when the token expires.
+          type: string
+          format: date-time