feat(proxy): add VLESS/Xray proxy configuration and update Docker setup

.env.production.example

@@ -5,6 +5,24 @@ APP_DEBUG=false
 APP_URL=https://example.com
 HTTP_PORT=8080
 
+DOCKER_REGISTRY=docker.arvancloud.ir
+
+# Optional VLESS/Xray proxy fallback.
+# Start with: docker compose --env-file .env.production --profile proxy up -d vless-proxy
+XRAY_IMAGE=ghcr.io/xtls/xray-core:latest
+XRAY_CONFIG_FILE=./docker/xray/config.local.json
+VLESS_PROXY_HTTP_PORT=2080
+VLESS_PROXY_SOCKS_PORT=2081
+DOCKER_BUILD_HTTP_PROXY=
+DOCKER_BUILD_HTTPS_PROXY=
+DOCKER_BUILD_NO_PROXY=localhost,127.0.0.1,::1
+DEBIAN_APT_MIRROR=
+DEBIAN_SECURITY_APT_MIRROR=
+DEBIAN_APT_DISABLE_UPDATES=
+APP_HTTP_PROXY=
+APP_HTTPS_PROXY=
+APP_NO_PROXY=localhost,127.0.0.1,::1,mariadb,nginx,app,queue,scheduler,vless-proxy
+
 APP_LOCALE=fa
 APP_FALLBACK_LOCALE=en
 APP_FAKER_LOCALE=fa_IR