Implement server state handling in ChatController and ChatService, add ServerStateMapper utility, and create/update server state unit tests.

open_api/src/main/resources/chat-api.yml

@@ -53,6 +53,7 @@ components:
         - uuid
         - name
         - styledName
+      # TODO [Stijn] [2026-07-19]: Add who they ignore and who they are ignored by
 
       properties:
         uuid:
@@ -140,11 +141,3 @@ components:
           type: array
           items:
             $ref: "#/components/schemas/Server"
-  parameters:
-    From:
-      name: from
-      in: path
-      required: true
-      schema:
-        type: string
-        format: date-time