feat: add Office Contact settings page and reorder Advanced sidebar

- Add OfficeContact Prisma model with receptionist name, dentist name, phone, email, fax fields
- Create GET/PUT /api/office-contact backend route and storage
- Add OfficeContactCard frontend component under Settings > Advanced
- Reorder Advanced sidebar: Office Hours → Office Contact → Twilio Settings → Google AI Settings

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

packages/db/shared/schemas/results/UserAggregateResult.schema.ts

@@ -20,7 +20,8 @@ export const UserAggregateResultSchema = z.object({  _count: z.object({
     communications: z.number(),
     twilioSettings: z.number(),
     aiSettings: z.number(),
-    officeHours: z.number()
+    officeHours: z.number(),
+    officeContact: z.number()
   }).optional(),
   _sum: z.object({
     id: z.number().nullable()