Additional Fields default value not being applied (drizzle)

  user: {
    additionalFields: {
      firstName: {
        type: "string",
        required: true,
        fieldName: "first_name",
      },
      lastName: {
        type: "string",
        required: true,
        fieldName: "last_name",
      },
      dob: {
        type: "date",
        required: true,
        fieldName: "dob",
      },
      rollingNetDepositLimit: {
        type: "number",
        required: true,
        fieldName: "rolling_net_deposit_limit",
        defaultValue: 160000,
      },
      isLocked: {
        type: "boolean",
        required: true,
        fieldName: "is_locked",
        defaultValue: false,
      },
    },
  },

"auth:generate": "pnpm dlx @better-auth/cli@latest generate --y --output ./lib/server/schema/auth.schema.ts && prettier --write ./lib/server/schema/auth.schema.ts",

export const user = pgTable("user", {
  id: text("id").primaryKey(),
  name: text("name").notNull(),
  email: text("email").notNull().unique(),
  emailVerified: boolean("email_verified").notNull(),
  image: text("image"),
  createdAt: timestamp("created_at").notNull(),
  updatedAt: timestamp("updated_at").notNull(),
  phoneNumber: text("phone_number").unique(),
  phoneNumberVerified: boolean("phone_number_verified"),
  firstName: text("first_name").notNull(),
  lastName: text("last_name").notNull(),
  dob: timestamp("dob").notNull(),
  rollingNetDepositLimit: integer("rolling_net_deposit_limit").notNull(),
  isLocked: boolean("is_locked").notNull(),
});