feat(escolinha): nova tela de login (tema athleticmap-v2) com fundo.png + logo reais

- ConfigMap kc-theme-athleticmapv2 (login.ftl com fundo/logo em data URI) montado em /opt/keycloak/themes/athleticmap-v2/login
- loginTheme=athleticmap-v2 (via kcadm no realm existente; tb no realm CM p/ reimport)
- design split-screen fiel ao modelo: Bem-vindo de volta, Lembrar-me, Esqueceu senha, Entrar, SSO

tenants/escolinha/20-keycloak.yaml

@@ -69,10 +69,16 @@ spec:
             - name: realm-import
               mountPath: /opt/keycloak/data/import
               readOnly: true
+            - name: theme-athleticmapv2
+              mountPath: /opt/keycloak/themes/athleticmap-v2/login
+              readOnly: true
       volumes:
         - name: realm-import
           configMap:
             name: kc-realm-import
+        - name: theme-athleticmapv2
+          configMap:
+            name: kc-theme-athleticmapv2
 ---
 apiVersion: v1
 kind: Service

tenants/escolinha/35-realm-import-cm.yaml

@@ -3,6 +3,7 @@ data:
   athleticmap-realm.json: |
     {
       "realm": "athleticmap",
+      "loginTheme": "athleticmap-v2",
       "enabled": true,
       "displayName": "Athletic Map",
       "loginWithEmailAllowed": true,