feat(migrations): update franchise to percentage in tenant_insurances and tenant_service_coverage

- Changed franchise_rials to franchise_percent in tenant_insurances and tenant_service_coverage tables.
- Reset old rial values to 0/NULL as they are not convertible to percentage.

feat(command): add SeedInsuranceScenarioCommand for seeding insurance data

- Implemented a command to seed supplementary insurance contracts, patients, and claims for a specified doctor.
- Includes functionality for purging existing scenario data and generating new entries with predefined contracts and patient scenarios.

assets/admin/components/session/CreateStep.tsx

@@ -17,7 +17,7 @@ import {
 } from '../../lib/insuranceShares';
 
 interface Contract extends TenantContract { uuid: string }
-interface CoverageRow { service_item_uuid: string | null; covered: boolean; coverage_percent: number | null; franchise_rials: number | null; ceiling_rials: number | null }
+interface CoverageRow { service_item_uuid: string | null; covered: boolean; coverage_percent: number | null; franchise_percent: number | null; ceiling_rials: number | null }
 interface InventoryItemRow { uuid: string; name: string; unit: string; price: number; stock: number; status: string }
 interface PackageRow { uuid: string; title: string; total: number; available: boolean }
 interface StaffRow { uuid: string; full_name: string; active?: boolean }
@@ -208,7 +208,7 @@ export default function CreateStep({ recordUuid, profile, onCreated, onCancel, e
     return {
       covered: true,
       percent:   ov?.coverage_percent ?? contractPercentFor(contract, category),
-      franchise: isSupplementary ? (ov?.franchise_rials ?? contract.franchise_rials) : 0,
+      franchise: isSupplementary ? (ov?.franchise_percent ?? contract.franchise_percent) : 0,
       ceiling:   ov?.ceiling_rials ?? contract.annual_ceiling_rials,
     };
   };