refactor(categories): move mutations into use cases

src/schemas/category.schema.ts

@@ -0,0 +1,18 @@
+import { z } from "zod"
+
+export const createCategorySchema = z.object({
+  name: z
+    .string()
+    .min(3, {
+      error: "Name is required and must be at least 3 characters long",
+    })
+    .nonempty("Name is required and must be at least 3 characters long"),
+})
+
+export type CreateCategoryFormType = z.infer<typeof createCategorySchema>
+
+export const updateCategorySchema = createCategorySchema.extend({
+  id: z.string().nonempty("ID is required"),
+})
+
+export type UpdateCategoryFormType = z.infer<typeof updateCategorySchema>