Implement appeal form flow with dynamic pages, integrate punishment selection, and add username retrieval logic. Update API schema and enhance auth.service for username handling.

open_api/src/main/resources/schemas/login/login.yml

@@ -62,6 +62,25 @@ RequestNewUserLogin:
           application/json:
             schema:
               $ref: '../generic/errors.yml#/components/schemas/ApiError'
+GetUsername:
+  get:
+    tags:
+      - login
+    summary: Get the username for the logged in user
+    operationId: getUsername
+    responses:
+      '200':
+        description: Username retrieved
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/Username'
+      default:
+        description: Unexpected error
+        content:
+          application/json:
+            schema:
+              $ref: '../generic/errors.yml#/components/schemas/ApiError'
 components:
   parameters:
     Code:
@@ -72,6 +91,12 @@ components:
         type: string
         description: The code to log in with
   schemas:
+    Username:
+      properties:
+        username:
+          type: string
+      required:
+        - username
     LoginData:
       type: object
       required: