feat(webapp): expose LAVA settings in admin UI and demo

Add RU/EN admin locale strings for the LAVA settings subsection and
field labels, regenerate the demo settings manifest snapshot, and list
LAVA among the demo dataset payment methods.

frontend/src/lib/webapp/demoDataset.js

@@ -484,6 +484,11 @@ export const DEMO_DATASET = {
       name: "PayKilla",
       icon: "Bitcoin",
     },
+    {
+      id: "lava",
+      name: "LAVA",
+      icon: "CreditCard",
+    },
   ],
   referral: {
     code: "DEMO0001",

frontend/src/lib/webapp/settingsManifest.generated.json

@@ -670,7 +670,7 @@
         "section_order": 4,
         "subsection": "common",
         "label": "Порядок методов оплаты",
-        "description": "Через запятую: severpay,freekassa,yookassa,platega,stars,cryptopay,heleket,paykilla",
+        "description": "Через запятую: severpay,freekassa,yookassa,platega,stars,cryptopay,heleket,paykilla,lava",
         "i18n_label_key": "admin_settings_field_payment_methods_order_label",
         "i18n_description_key": "admin_settings_field_payment_methods_order_description",
         "i18n_subsection_key": "admin_settings_subsection_common",
@@ -4598,6 +4598,393 @@
         "overridden": false,
         "updated_at": null,
         "webhook_base_url_configured": false
+      },
+      {
+        "key": "LAVA_ENABLED",
+        "type": "bool",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Включена",
+        "description": "",
+        "i18n_label_key": "admin_settings_field_lava_enabled_label",
+        "i18n_description_key": null,
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": null,
+        "placeholder": "",
+        "optional": true,
+        "secret": false,
+        "mutually_exclusive_key": "LAVA_ADMIN_ONLY_ENABLED",
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "LAVA_SHOP_ID",
+        "type": "string",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Shop ID",
+        "description": "",
+        "i18n_label_key": "admin_settings_field_lava_shop_id_label",
+        "i18n_description_key": null,
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": null,
+        "placeholder": "",
+        "optional": true,
+        "secret": false,
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "LAVA_SECRET_KEY",
+        "type": "string",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Secret key",
+        "description": "Signs outgoing API requests (HMAC-SHA256 in the Signature header).",
+        "i18n_label_key": "admin_settings_field_lava_secret_key_label",
+        "i18n_description_key": "admin_settings_field_lava_secret_key_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": null,
+        "placeholder": "",
+        "optional": true,
+        "secret": true,
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "has_value": false,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "LAVA_WEBHOOK_SECRET",
+        "type": "string",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Webhook secret",
+        "description": "The shop's additional key used to verify webhook signatures. Leave empty to reuse the secret key.",
+        "i18n_label_key": "admin_settings_field_lava_webhook_secret_label",
+        "i18n_description_key": "admin_settings_field_lava_webhook_secret_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": null,
+        "placeholder": "",
+        "optional": true,
+        "secret": true,
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "has_value": false,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "LAVA_BASE_URL",
+        "type": "url",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Base URL",
+        "description": "",
+        "i18n_label_key": "admin_settings_field_lava_base_url_label",
+        "i18n_description_key": null,
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": "admin_settings_field_lava_base_url_placeholder",
+        "placeholder": "https://api.lava.ru",
+        "optional": true,
+        "secret": false,
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "LAVA_RETURN_URL",
+        "type": "url",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Return URL",
+        "description": "",
+        "i18n_label_key": "admin_settings_field_lava_return_url_label",
+        "i18n_description_key": null,
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": null,
+        "placeholder": "",
+        "optional": true,
+        "secret": false,
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "LAVA_LIFETIME_MINUTES",
+        "type": "int",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Payment link lifetime (minutes)",
+        "description": "1..7200; leave empty for the LAVA default.",
+        "i18n_label_key": "admin_settings_field_lava_lifetime_minutes_label",
+        "i18n_description_key": "admin_settings_field_lava_lifetime_minutes_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": null,
+        "placeholder": "",
+        "optional": true,
+        "secret": false,
+        "min": 1,
+        "max": 7200,
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "LAVA_INCLUDE_SERVICES",
+        "type": "string",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Payment services filter",
+        "description": "Comma-separated LAVA pay services to show on the payment page (e.g. card,sbp). Empty shows everything enabled for the shop.",
+        "i18n_label_key": "admin_settings_field_lava_include_services_label",
+        "i18n_description_key": "admin_settings_field_lava_include_services_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": "admin_settings_field_lava_include_services_placeholder",
+        "placeholder": "card,sbp",
+        "optional": true,
+        "secret": false,
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "PAYMENT_LAVA_WEBAPP_LABEL_RU",
+        "type": "string",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "WebApp button text (RU)",
+        "description": "Custom Russian text shown in the Web App payment method button.",
+        "i18n_label_key": "admin_settings_field_payment_lava_webapp_label_ru_label",
+        "i18n_description_key": "admin_settings_field_payment_lava_webapp_label_ru_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": "admin_settings_field_payment_lava_webapp_label_ru_placeholder",
+        "placeholder": "LAVA",
+        "optional": true,
+        "secret": false,
+        "default": "LAVA",
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "PAYMENT_LAVA_WEBAPP_LABEL_EN",
+        "type": "string",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "WebApp button text (EN)",
+        "description": "Custom English text shown in the Web App payment method button.",
+        "i18n_label_key": "admin_settings_field_payment_lava_webapp_label_en_label",
+        "i18n_description_key": "admin_settings_field_payment_lava_webapp_label_en_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": "admin_settings_field_payment_lava_webapp_label_en_placeholder",
+        "placeholder": "LAVA",
+        "optional": true,
+        "secret": false,
+        "default": "LAVA",
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "PAYMENT_LAVA_WEBAPP_ICON",
+        "type": "icon",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "WebApp button icon",
+        "description": "Lucide icon name rendered inside the Web App payment method button.",
+        "i18n_label_key": "admin_settings_field_payment_lava_webapp_icon_label",
+        "i18n_description_key": "admin_settings_field_payment_lava_webapp_icon_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": "admin_settings_field_payment_lava_webapp_icon_placeholder",
+        "placeholder": "CreditCard",
+        "optional": true,
+        "secret": false,
+        "default": "CreditCard",
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "PAYMENT_LAVA_TELEGRAM_LABEL_RU",
+        "type": "string",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Telegram button text (RU)",
+        "description": "Custom Russian text shown in Telegram bot payment buttons.",
+        "i18n_label_key": "admin_settings_field_payment_lava_telegram_label_ru_label",
+        "i18n_description_key": "admin_settings_field_payment_lava_telegram_label_ru_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": "admin_settings_field_payment_lava_telegram_label_ru_placeholder",
+        "placeholder": "LAVA",
+        "optional": true,
+        "secret": false,
+        "default": "LAVA",
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "PAYMENT_LAVA_TELEGRAM_LABEL_EN",
+        "type": "string",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Telegram button text (EN)",
+        "description": "Custom English text shown in Telegram bot payment buttons.",
+        "i18n_label_key": "admin_settings_field_payment_lava_telegram_label_en_label",
+        "i18n_description_key": "admin_settings_field_payment_lava_telegram_label_en_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": "admin_settings_field_payment_lava_telegram_label_en_placeholder",
+        "placeholder": "LAVA",
+        "optional": true,
+        "secret": false,
+        "default": "LAVA",
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "PAYMENT_LAVA_TELEGRAM_EMOJI",
+        "type": "string",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Telegram button emoji",
+        "description": "Emoji prepended to the Telegram bot payment button when customized.",
+        "i18n_label_key": "admin_settings_field_payment_lava_telegram_emoji_label",
+        "i18n_description_key": "admin_settings_field_payment_lava_telegram_emoji_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": "admin_settings_field_payment_lava_telegram_emoji_placeholder",
+        "placeholder": "💳",
+        "optional": true,
+        "secret": false,
+        "default": "💳",
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
+      },
+      {
+        "key": "LAVA_ADMIN_ONLY_ENABLED",
+        "type": "bool",
+        "section": "payments",
+        "section_order": 4,
+        "subsection": "LAVA",
+        "label": "Only for admins",
+        "description": "Shows this payment method only to users from ADMIN_IDS. Webhooks and provider services remain active for admin test payments.",
+        "i18n_label_key": "admin_settings_provider_admin_only_label",
+        "i18n_description_key": "admin_settings_provider_admin_only_description",
+        "i18n_subsection_key": "admin_settings_subsection_lava",
+        "i18n_placeholder_key": null,
+        "placeholder": "",
+        "optional": true,
+        "secret": false,
+        "mutually_exclusive_key": "LAVA_ENABLED",
+        "provider_id": "lava",
+        "provider_label": "LAVA",
+        "webhook_provider_id": "lava",
+        "webhook_path": "/webhook/lava",
+        "webhook_requires_base_url": false,
+        "value": "",
+        "overridden": false,
+        "updated_at": null,
+        "webhook_base_url_configured": false
       }
     ]
   },

locales/en.json

@@ -1220,6 +1220,7 @@
   "admin_settings_subsection_wata": "Wata",
   "admin_settings_subsection_heleket": "Heleket",
   "admin_settings_subsection_paykilla": "PayKilla",
+  "admin_settings_subsection_lava": "LAVA",
   "admin_settings_provider_webhook_url": "Webhook URL",
   "admin_settings_provider_webhook_url_hint": "Use this URL in the provider webhook settings.",
   "admin_settings_panel_webhook_url_hint": "Use this URL as WEBHOOK_URL in Remnawave Panel.",
@@ -1772,6 +1773,18 @@
   "admin_settings_field_severpay_return_url_label": "SeverPay Return URL",
   "admin_settings_field_severpay_lifetime_minutes_label": "SeverPay Lifetime Minutes",
   "admin_settings_field_severpay_lifetime_minutes_description": "Controls the 'SeverPay Lifetime Minutes' setting in admin overrides.",
+  "admin_settings_field_lava_enabled_label": "Enabled",
+  "admin_settings_field_lava_shop_id_label": "Shop ID",
+  "admin_settings_field_lava_secret_key_label": "Secret key",
+  "admin_settings_field_lava_secret_key_description": "Signs outgoing API requests (HMAC-SHA256 in the Signature header).",
+  "admin_settings_field_lava_webhook_secret_label": "Webhook secret",
+  "admin_settings_field_lava_webhook_secret_description": "The shop's additional key used to verify webhook signatures. Leave empty to reuse the secret key.",
+  "admin_settings_field_lava_base_url_label": "Base URL",
+  "admin_settings_field_lava_return_url_label": "Return URL",
+  "admin_settings_field_lava_lifetime_minutes_label": "Payment link lifetime (minutes)",
+  "admin_settings_field_lava_lifetime_minutes_description": "1..7200; leave empty for the LAVA default.",
+  "admin_settings_field_lava_include_services_label": "Payment services filter",
+  "admin_settings_field_lava_include_services_description": "Comma-separated LAVA pay services shown on the payment page (e.g. card,sbp). Empty shows everything enabled for the shop.",
   "admin_settings_field_cryptopay_enabled_label": "CryptoPay Enabled",
   "admin_settings_field_cryptopay_token_label": "CryptoPay Token",
   "admin_settings_field_cryptopay_network_label": "CryptoPay Network",

locales/ru.json

@@ -1220,6 +1220,7 @@
   "admin_settings_subsection_wata": "Wata",
   "admin_settings_subsection_heleket": "Heleket",
   "admin_settings_subsection_paykilla": "PayKilla",
+  "admin_settings_subsection_lava": "LAVA",
   "admin_settings_provider_webhook_url": "Webhook URL",
   "admin_settings_provider_webhook_url_hint": "Укажите этот адрес в настройках вебхуков провайдера.",
   "admin_settings_panel_webhook_url_hint": "Укажите этот адрес как WEBHOOK_URL в Remnawave Panel.",
@@ -1772,6 +1773,18 @@
   "admin_settings_field_severpay_return_url_label": "Return URL",
   "admin_settings_field_severpay_lifetime_minutes_label": "Срок жизни ссылки (мин)",
   "admin_settings_field_severpay_lifetime_minutes_description": "30..4320; пусто — значение провайдера",
+  "admin_settings_field_lava_enabled_label": "Включена",
+  "admin_settings_field_lava_shop_id_label": "Shop ID",
+  "admin_settings_field_lava_secret_key_label": "Секретный ключ",
+  "admin_settings_field_lava_secret_key_description": "Подписывает исходящие запросы к API (HMAC-SHA256 в заголовке Signature).",
+  "admin_settings_field_lava_webhook_secret_label": "Ключ вебхуков",
+  "admin_settings_field_lava_webhook_secret_description": "Дополнительный ключ магазина для проверки подписи вебхуков. Пусто — используется секретный ключ.",
+  "admin_settings_field_lava_base_url_label": "Base URL",
+  "admin_settings_field_lava_return_url_label": "Return URL",
+  "admin_settings_field_lava_lifetime_minutes_label": "Срок жизни ссылки (мин)",
+  "admin_settings_field_lava_lifetime_minutes_description": "1..7200; пусто — значение провайдера",
+  "admin_settings_field_lava_include_services_label": "Фильтр способов оплаты",
+  "admin_settings_field_lava_include_services_description": "Через запятую: способы оплаты LAVA на странице счёта (например card,sbp). Пусто — все доступные магазину.",
   "admin_settings_field_cryptopay_enabled_label": "Включена",
   "admin_settings_field_cryptopay_token_label": "Token",
   "admin_settings_field_cryptopay_network_label": "Network",