feat(finance): edit payroll with month ranges, reasons, and toman

Let salary and payments be corrected after they are saved, pick a Jalali period as a month range, and show toman on finance amounts.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/prisma/migrations/20261108133000_payroll_amount_reasons/migration.sql

@@ -0,0 +1,4 @@
+-- AlterTable
+ALTER TABLE "FinancialPayroll" ADD COLUMN "benefitsReason" TEXT;
+ALTER TABLE "FinancialPayroll" ADD COLUMN "bonusReason" TEXT;
+ALTER TABLE "FinancialPayroll" ADD COLUMN "deductionsReason" TEXT;

apps/api/prisma/schema.prisma

@@ -2447,8 +2447,11 @@ model FinancialPayroll {
   period         String
   baseAmount     Decimal             @db.Decimal(18, 2)
   benefits       Decimal             @default(0) @db.Decimal(18, 2)
+  benefitsReason String?
   bonus          Decimal             @default(0) @db.Decimal(18, 2)
+  bonusReason    String?
   deductions     Decimal             @default(0) @db.Decimal(18, 2)
+  deductionsReason String?
   payable        Decimal             @db.Decimal(18, 2)
   dueDate        DateTime
   notes          String?