added other materials tab

src/schemas/supply.schema.ts

@@ -0,0 +1,20 @@
+import { z } from "zod/v4";
+import { SUPPLY_CATEGORIES } from "@/lib/constants";
+
+export const supplySchema = z.object({
+  name: z.string().min(1, "Name is required").max(128),
+  brand: z.string().min(1, "Brand is required").max(64),
+  category: z.enum(SUPPLY_CATEGORIES),
+  color: z.string().max(64).optional().or(z.literal("")),
+  colorHex: z.string().regex(/^#[0-9A-Fa-f]{6}$/, "Invalid hex color").optional().or(z.literal("")),
+  totalAmount: z.coerce.number().positive("Total amount must be positive"),
+  usedAmount: z.coerce.number().min(0).default(0),
+  unit: z.string().min(1, "Unit is required").max(16),
+  vendorId: z.string().optional().or(z.literal("")),
+  locationId: z.string().optional().or(z.literal("")),
+  purchaseDate: z.string().optional().or(z.literal("")),
+  cost: z.coerce.number().min(0).optional(),
+  notes: z.string().max(1024).optional(),
+});
+
+export type SupplyInput = z.output<typeof supplySchema>;