fix(deploy): align environment variable names and add missing host vars

.gitea/workflows/deploy.yml

@@ -227,6 +227,7 @@ jobs:
         shell: bash
         env:
           TRAEFIK_RULE:     ${{ needs.prepare.outputs.traefik_rule }}
+          TRAEFIK_HOST:     ${{ needs.prepare.outputs.traefik_host }}
           ENV_FILE:         ${{ needs.prepare.outputs.env_file }}
         run: |
           # Generate Environment File
@@ -272,7 +273,9 @@ jobs:
           SENTRY_ENVIRONMENT=$TARGET
           PROJECT_NAME=$PROJECT_NAME
           ENV_FILE=$ENV_FILE
-          TRAEFIK_HOST_RULE='$TRAEFIK_RULE'
+          TRAEFIK_RULE='$TRAEFIK_RULE'
+          TRAEFIK_HOST='$TRAEFIK_HOST'
+          GATEKEEPER_HOST='gatekeeper.$TRAEFIK_HOST'
           EOF
 
           # AUTH_MIDDLEWARE logic