fix: update default keycloak base URL (#428)

* refactor(chart): rename frontend ConfigMap and add config.json key

- Rename configmap-caddy.yaml to configmap.yaml (generic frontend ConfigMap)
- Update helper from *-frontend-caddy to *-frontend
- Add showcase.frontend.config (YAML) rendered as config.json in ConfigMap
- Mount config.json to /srv{baseRoute}/config.json in frontend deployment
- Rename volume from 'caddyfile' to 'frontend-config'

Signed-off-by: Emiliano Suñé <2395873+esune@users.noreply.github.com>

* feat(chart): add server ConfigMap with keycloak.json

- Add showcase.server.keycloak values (YAML → JSON)
- Create server/configmap.yaml template with keycloak.json key
- Mount keycloak.json to /app/server/config/keycloak.json in server deployment
- Add showcase.server.configmapName helper

Signed-off-by: Emiliano Suñé <2395873+esune@users.noreply.github.com>

* fix(chart): values file formatting

Signed-off-by: Emiliano Suñé <2395873+esune@users.noreply.github.com>

* fix(chart): add /auth context path to keycloakUrl for BC Gov SSO proxy

---------

Signed-off-by: Emiliano Suñé <2395873+esune@users.noreply.github.com>

Author: esune

charts/showcase/values.yaml

@@ -122,7 +122,7 @@ showcase:
     ## Keycloak config injected as /app/server/config/keycloak.json via ConfigMap.
     ## Specify as YAML here; the chart converts it to JSON automatically.
     keycloak:
-      keycloakUrl: 'https://dev.loginproxy.gov.bc.ca'
+      keycloakUrl: 'https://dev.loginproxy.gov.bc.ca/auth'
       keycloakRealm: digitaltrust-citz
     ## Non-sensitive runtime env vars for the server Deployment.
     ## Use existingSecret for sensitive credentials and MONGODB_URI.
@@ -144,7 +144,7 @@ showcase:
     ## Runtime config injected as /srv{baseRoute}/config.json via ConfigMap.
     ## Specify as YAML here; the chart converts it to JSON automatically.
     config:
-      keycloakUrl: 'https://dev.loginproxy.gov.bc.ca'
+      keycloakUrl: 'https://dev.loginproxy.gov.bc.ca/auth'
       keycloakRealm: digitaltrust-citz
       keycloakClientId: showcase-admin
     ## Caddy Content-Security-Policy header. Default is permissive for Vite/React + API/WS; tighten for production.