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/deleteManyOfficeContact.schema.ts

@@ -0,0 +1,7 @@
+import type { Prisma } from '../../generated/prisma';
+import * as z from 'zod';
+import { OfficeContactWhereInputObjectSchema as OfficeContactWhereInputObjectSchema } from './objects/OfficeContactWhereInput.schema';
+
+export const OfficeContactDeleteManySchema: z.ZodType<Prisma.OfficeContactDeleteManyArgs> = z.object({ where: OfficeContactWhereInputObjectSchema.optional() }).strict() as unknown as z.ZodType<Prisma.OfficeContactDeleteManyArgs>;
+
+export const OfficeContactDeleteManyZodSchema = z.object({ where: OfficeContactWhereInputObjectSchema.optional() }).strict();