Standardize adjustment reason categories and descriptions

prisma/migrations/20260521_adjustment_reason_category_enum_description/migration.sql

@@ -0,0 +1,8 @@
+CREATE TYPE "AdjustmentReasonCategory" AS ENUM ('SHRINKAGE', 'DAMAGE', 'REGRADE', 'ADJUSTMENT');
+
+ALTER TABLE "adjustment_reasons"
+ADD COLUMN "description" VARCHAR(255);
+
+ALTER TABLE "adjustment_reasons"
+ALTER COLUMN "category" TYPE "AdjustmentReasonCategory"
+USING ("category"::"AdjustmentReasonCategory");

prisma/schema.prisma

@@ -8,6 +8,13 @@ datasource db {
   url      = env("DATABASE_URL")
 }
 
+enum AdjustmentReasonCategory {
+  SHRINKAGE
+  DAMAGE
+  REGRADE
+  ADJUSTMENT
+}
+
 model Role {
   id        BigInt   @id @default(autoincrement())
   code      String   @unique @db.VarChar(50)
@@ -486,7 +493,8 @@ model AdjustmentReason {
   id               BigInt            @id @default(autoincrement())
   code             String            @unique @db.VarChar(50)
   name             String            @db.VarChar(100)
-  category         String            @db.VarChar(50)
+  description      String?           @db.VarChar(255)
+  category         AdjustmentReasonCategory
   status           String            @default("ACTIVE") @db.VarChar(20)
   createdAt        DateTime          @default(now()) @map("created_at")
   updatedAt        DateTime          @updatedAt @map("updated_at")