update PostgreSQL configuration in deployment files

- Change PostgreSQL volume mount from /var/lib/postgresql/data to /var/lib/postgresql
  This allows PostgreSQL to manage the data directory structure internally

- Add PostgreSQL version configuration variable to all docker-compose files:
  * POSTGRES_VERSION for deployment/nginx
  * APPSEC_POSTGRES_VERSION for all deployment/docker-compose variants

- Update PostgreSQL image tag to use version variable (set to version 18)
  Changed from 'postgres' to 'postgres:' or 'postgres:'

- Add PostgreSQL version variable to all .env files with default value of 18

core/include/attachments/nginx_attachment_common.h

@@ -227,11 +227,7 @@ typedef enum ngx_web_response_type
 #endif
 {
     CUSTOM_WEB_RESPONSE,
-    CUSTOM_WEB_BLOCK_PAGE_RESPONSE,
-    RESPONSE_CODE_ONLY,
-    REDIRECT_WEB_RESPONSE,
-
-    NO_WEB_RESPONSE
+    REDIRECT_WEB_RESPONSE
 } ngx_web_response_type_e;
 
 typedef struct __attribute__((__packed__)) ngx_http_cp_inject_data {