feat: add Selenium Settings page to configure paymentGroupId per office

Adds a new Settings → Advanced → Selenium Settings page where the office
name (paymentGroupId) used in United/DentalHub portal dropdowns can be
configured without touching code. Previously hardcoded as "Summit Dental
Care"; now injected from DB into the three United workers at job dispatch.

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

packages/db/shared/schemas/objects/LabRxTemplateUncheckedCreateWithoutUserInput.schema.ts

@@ -13,7 +13,6 @@ const makeSchema = () => z.object({
   caseType: z.string().optional().nullable(),
   material: z.string().optional().nullable(),
   instructions: z.string().optional().nullable(),
-  doctorName: z.string().optional().nullable(),
   sortOrder: z.number().int().optional(),
   createdAt: z.coerce.date().optional(),
   updatedAt: z.coerce.date().optional()