feat(partners): add utility functions for partner business activity allocation limits and remaining licenses

- Implemented `getPartnerBusinessActivityAllocationLimits` to retrieve allocation limits for a partner's business activity.
- Added `ensurePartnerBusinessActivityHasRemainingAllocation` to validate remaining allocation credits.
- Created `getPartnerRemainingLicenses` to count remaining licenses for a partner.
- Developed `getPartnerFirstRemainingLicense` to fetch the first unused license for a partner.
- Introduced `ensurePartnerHasRemainingLicense` to ensure a partner has at least one unused license.

prisma/schema/admin/consumers.prisma

@@ -11,9 +11,10 @@ model ConsumerAccount {
   account_id String  @unique()
   account    Account @relation(fields: [account_id], references: [id])
 
-  pos            Pos?
-  permission     PermissionConsumer?
-  sales_invoices SalesInvoice[]
+  pos                Pos?
+  permission         PermissionConsumer?
+  account_allocation LicenseAccountAllocation?
+  sales_invoices     SalesInvoice[]
 
   @@map("consumer_accounts")
 }