feat: chat window, preferred language, insurance contact, and AI call eligibility

- Schedule: right-click Chat option opens floating SMS chat window
- Chat window: SMS template selector with appointment date/time pre-filled
- Chat window: office name and phone pulled from Settings > Office Contact
- Chat window: Preferred Language selector (English, Spanish, Portuguese,
  Mandarin, Cantonese, Arabic, Haitian Creole) with fully translated templates
  and locale-aware date/time formatting
- Patient form: Preferred Language field (add/edit), default English
- Settings > Office Contact: added Dental Office Name field
- Settings > Advanced: Insurance Contact page (CRUD — company name + phone)
- Prisma schema: preferredLanguage on Patient, officeName on OfficeContact,
  new InsuranceContact model
- Patient management: Upload Patient Document moved below Patient Records
- Insurance Eligibility: AI Call Insurance collapsible section; insurance
  company and phone auto-populated from saved Insurance Contacts

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/Frontend/src/pages/settings-page.tsx

@@ -18,6 +18,7 @@ import { AiSettingsCard } from "@/components/settings/ai-settings-card";
 import { OfficeHoursCard } from "@/components/settings/office-hours-card";
 import { OfficeContactCard } from "@/components/settings/office-contact-card";
 import { ProcedureTimeslotCard } from "@/components/settings/procedure-timeslot-card";
+import { InsuranceContactCard } from "@/components/settings/insurance-contact-card";
 
 type SectionId =
   | "staff"
@@ -30,7 +31,8 @@ type SectionId =
   | "ai"
   | "officehours"
   | "officecontact"
-  | "proceduretimeslot";
+  | "proceduretimeslot"
+  | "insurancecontact";
 
 export default function SettingsPage() {
   const { toast } = useToast();
@@ -266,6 +268,9 @@ export default function SettingsPage() {
       case "proceduretimeslot":
         return <ProcedureTimeslotCard />;
 
+      case "insurancecontact":
+        return <InsuranceContactCard />;
+
       default:
         return null;
     }