Add staff role mapping, display role in UI, and enhance staff playtime calculations

open_api/src/main/resources/schemas/site/staff_pt.yml

@@ -40,6 +40,11 @@ components:
         $ref: '#/components/schemas/StaffPlaytime'
     StaffPlaytime:
       type: object
+      required:
+        - staff_member
+        - playtime
+        - last_played
+        - role
       properties:
         staff_member:
           type: string
@@ -51,3 +56,6 @@ components:
           type: string
           format: date-time
           description: Last played timestamp
+        role:
+          type: string
+          description: The role of the staff member