feat(webui): polish agent output and app discovery

webui/src/i18n/locales/es/common.json

@@ -925,6 +925,8 @@
       "goalStateCloseAria": "Cerrar objetivo",
       "send": "Enviar mensaje",
       "stop": "Detener respuesta",
+      "quotedContext": "Contexto citado",
+      "removeQuotedContext": "Quitar contexto citado",
       "modelNotConfigured": "Modelo no configurado",
       "configureModel": "Configurar modelo",
       "queued": {
@@ -1109,6 +1111,7 @@
     "agentActivityLiveSummary": "En curso… · {{reasoning}} pasos · {{tools}} llamadas a herramientas",
     "agentActivityLiveToolsOnly": "En curso… · {{tools}} llamadas a herramientas",
     "imageAttachment": "Imagen adjunta",
+    "askAboutSelection": "Preguntar sobre esto",
     "forkFromHere": "Bifurcar",
     "copyReply": "Copiar",
     "copiedReply": "Copiado",
@@ -1127,9 +1130,9 @@
     "activityWorkingFor": "Trabajando durante {{duration}}",
     "activityWorked": "Trabajo completado",
     "activityWorkedFor": "Trabajó durante {{duration}}",
-    "cliActivityRunningOne": "Usando @{{name}}",
-    "cliActivityRanOne": "Usó @{{name}}",
-    "cliActivityFailedOne": "Falló @{{name}}",
+    "cliActivityRunningOne": "Usando {{name}}",
+    "cliActivityRanOne": "Usó {{name}}",
+    "cliActivityFailedOne": "Falló {{name}}",
     "cliActivityRunningMany": "Usando {{count}} apps CLI",
     "cliActivityRanMany": "Usó {{count}} apps CLI",
     "cliActivityFailedMany": "Fallaron {{count}} apps CLI",