feat: add AI-driven phone calls to patient connection

Adds an "AI Call" option alongside Call/SMS/Chat that places an outbound
call where Lisa converses live with the patient via Twilio speech
gather + TTS, using the same conversational AI as chat. Includes a
separate, user-editable Call Template (Settings > AI Chat/Call Settings)
so the call greeting can be customized independently of SMS templates.

Also fixes the outbound-call webhook URL to always use the fixed public
Twilio hostname (CLOUDFLARE_HOST) instead of deriving it from the
triggering request, since staff-browser requests arrive over the
LAN-only hostname, which Twilio can never reach.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/Frontend/src/pages/patient-connection-page.tsx

@@ -24,6 +24,7 @@ import {
   Send,
   X,
   MoonStar,
+  Bot,
 } from "lucide-react";
 import { SmsTemplateDialog } from "@/components/patient-connection/sms-template-diaog";
 import { MessageThread } from "@/components/patient-connection/message-thread";
@@ -103,6 +104,32 @@ export default function PatientConnectionPage() {
     },
   });
 
+  const makeAiCallMutation = useMutation({
+    mutationFn: async ({
+      to,
+      patientId,
+    }: {
+      to: string;
+      patientId: number;
+    }) => {
+      return apiRequest("POST", "/api/twilio/make-ai-call", { to, patientId });
+    },
+    onSuccess: () => {
+      toast({
+        title: "AI Call Started",
+        description: "Lisa is calling the patient now.",
+      });
+    },
+    onError: (error: any) => {
+      toast({
+        title: "AI Call Failed",
+        description:
+          error.message || "Unable to place the AI call. Please try again.",
+        variant: "destructive",
+      });
+    },
+  });
+
   // Fetch all patients from database
   const { data: patients = [], isLoading } = useQuery<Patient[]>({
     queryKey: ["/api/patients"],
@@ -139,6 +166,22 @@ export default function PatientConnectionPage() {
     });
   };
 
+  // Handle AI-driven call via Twilio
+  const handleAiCall = (patient: Patient) => {
+    if (!patient.phone?.trim()) {
+      toast({
+        title: "No Phone Number",
+        description: "This patient does not have a phone number on file.",
+        variant: "destructive",
+      });
+      return;
+    }
+    makeAiCallMutation.mutate({
+      to: patient.phone,
+      patientId: Number(patient.id),
+    });
+  };
+
   // Handle sending SMS
   const handleSMS = (patient: Patient) => {
     setSelectedPatient(patient);
@@ -343,6 +386,15 @@ export default function PatientConnectionPage() {
                           <Phone className="h-4 w-4 mr-1" />
                           Call
                         </Button>
+                        <Button
+                          variant="outline"
+                          size="sm"
+                          onClick={() => handleAiCall(patient)}
+                          data-testid={`button-ai-call-${patient.id}`}
+                        >
+                          <Bot className="h-4 w-4 mr-1" />
+                          AI Call
+                        </Button>
                         <Button
                           variant="outline"
                           size="sm"