test(i18n,sub): clear the three standing vitest reds (item 10)

- i18n dead keys: drop 13 keys with no reference left (pages.xray.routeTester*
  from the P9 feature removal, tgbot.online superseded by tgbot.messages.online,
  tgbot.commands.restartSuccess/restartFailed from the rewritten restart handler)
- i18n key sets: add the P9 forwarding block (20 keys) to the 11 locales that
  missed it, as English placeholders per repo convention; all 13 locales now
  carry identical key sets
- subscription port test: the case predated P7 — clearing the port field is the
  explicit subPort 0 (no port in generated links) opt-in via onNumber onClear,
  so assert updateSetting is called with { subPort: 0 } instead of never called

No component code, UI behavior, or styles touched.

internal/web/translation/es-ES.json

@@ -282,6 +282,28 @@
       "streamTab": "Transmisión",
       "securityTab": "Seguridad",
       "sniffingTab": "Inspección",
+      "forwardingTab": "Forwarding",
+      "forwarding": {
+        "mode": "Forwarding",
+        "direct": "Direct",
+        "forward": "Forward (entry → exit)",
+        "landing": "Landing",
+        "managed": "Managed landing",
+        "manual": "Manual endpoint",
+        "target": "Landing inbound",
+        "targetPlaceholder": "Pick a SOCKS (mixed) inbound",
+        "targetDisabled": "disabled",
+        "address": "Landing address",
+        "port": "Exit port",
+        "protocol": "Entry → exit protocol",
+        "username": "SOCKS5 username",
+        "password": "Landing password",
+        "importLink": "Import from link",
+        "importPlaceholder": "socks5://user:pass@host:port",
+        "importApply": "Import",
+        "importFailed": "Could not parse that link",
+        "help": "Applies when this inbound is deployed to an agent node: on every config pull the panel compiles this forwarding into a dedicated outbound plus a routing rule for that agent. A managed landing's address and credentials are resolved from the chosen inbound at build time."
+      },
       "sniffingMetadataOnly": "Solo metadatos",
       "sniffingRouteOnly": "Solo enrutamiento",
       "sniffingIpsExcluded": "IPs excluidas",
@@ -1243,16 +1265,6 @@
       "Balancers": "Equilibradores",
       "balancerTagRequired": "La etiqueta es obligatoria",
       "balancerSelectorRequired": "Elige al menos una salida",
-      "routeTester": "Prueba de ruta",
-      "routeTesterDesc": "Pregunta al Xray en ejecución qué salida gestionaría una conexión. No se envía tráfico real — la decisión viene directamente del motor de enrutamiento en vivo.",
-      "routeTesterDest": "Dominio o IP",
-      "routeTesterPort": "Puerto",
-      "routeTesterInbound": "Entrante",
-      "routeTesterProtocol": "Protocolo detectado",
-      "routeTesterTest": "Probar ruta",
-      "routeTesterMatchedOutbound": "Salida coincidente",
-      "routeTesterViaBalancer": "vía balanceador",
-      "routeTesterDefaultOutbound": "Ninguna regla de enrutamiento coincidió — el tráfico va a la salida predeterminada (primera).",
       "Routings": "Reglas de enrutamiento",
       "logLevel": "Nivel de registro",
       "logLevelDesc": "El nivel de registro para registros de errores, que indica la información que debe registrarse.",
@@ -1717,7 +1729,6 @@
     "inbounds": "Entradas",
     "clients": "Clientes",
     "offline": "🔴 Sin conexión",
-    "online": "🟢 En línea",
     "commands": {
       "unknown": "❗ Comando desconocido",
       "pleaseChoose": "👇 Por favor elige:\r\n",
@@ -1730,8 +1741,6 @@
       "helpAdminCommands": "Para reiniciar Xray Core:\r\n<code>/restart</code>\r\n\r\nPara buscar un correo electrónico de cliente:\r\n<code>/usage [Correo electrónico]</code>\r\n\r\nPara buscar entradas (con estadísticas de cliente):\r\n<code>/inbound [Observación]</code>\r\n\r\nID de Chat de Telegram:\r\n<code>/id</code>",
       "helpClientCommands": "Para buscar estadísticas, utiliza el siguiente comando:\r\n<code>/usage [Correo electrónico]</code>\r\n\r\nID de Chat de Telegram:\r\n<code>/id</code>",
       "restartUsage": "\r\n\r\n<code>/restart</code>",
-      "restartSuccess": "✅ ¡Operación exitosa!",
-      "restartFailed": "❗ Error en la operación.\r\n\r\n<code>Error: {{ .Error }}</code>.",
       "xrayNotRunning": "❗ Xray Core no está en ejecución.",
       "startDesc": "Mostrar el menú principal",
       "helpDesc": "Ayuda del bot",