feat(frontend): add React UI — procurement office, wizard, suppliers, inventory panel (dash port), role-based login

frontend/src/hooks/useUnits.ts

@@ -0,0 +1,70 @@
+// ============================================================
+// hooks واحدها — واحد مرجع، ضرایب دسته‌ای و ثابت
+// ============================================================
+
+import { useMutation } from "@tanstack/react-query";
+import type { CategoryUnit, StandardConversion, UnitConversion } from "../lib/types";
+import { api } from "../lib/api";
+import { useAppStore } from "../store";
+import { useInvalidateStore } from "./useStoreData";
+
+export function useUnits(): {
+  categoryUnits: CategoryUnit[];
+  unitConversions: UnitConversion[];
+  standardConversions: StandardConversion[];
+} {
+  const categoryUnits = useAppStore((s) => s.categoryUnits);
+  const unitConversions = useAppStore((s) => s.unitConversions);
+  const standardConversions = useAppStore((s) => s.standardConversions);
+  return { categoryUnits, unitConversions, standardConversions };
+}
+
+export function useSaveRefUnit() {
+  const setCategoryUnit = useAppStore((s) => s.setCategoryUnit);
+  const invalidate = useInvalidateStore();
+  return useMutation({
+    mutationFn: (cu: CategoryUnit) => api.units.saveCategoryUnit(cu),
+    onMutate: (cu) => setCategoryUnit(cu),
+    onSettled: () => invalidate(),
+  });
+}
+
+export function useSaveConversion() {
+  const setConversion = useAppStore((s) => s.setConversion);
+  const invalidate = useInvalidateStore();
+  return useMutation({
+    mutationFn: (c: UnitConversion) => api.units.saveConversion(c),
+    onMutate: (c) => setConversion(c),
+    onSettled: () => invalidate(),
+  });
+}
+
+export function useDeleteConversion() {
+  const deleteConversion = useAppStore((s) => s.deleteConversion);
+  const invalidate = useInvalidateStore();
+  return useMutation({
+    mutationFn: (id: string) => api.units.deleteConversion(id),
+    onMutate: (id) => deleteConversion(id),
+    onSettled: () => invalidate(),
+  });
+}
+
+export function useSaveStandardConversion() {
+  const setStandardConversion = useAppStore((s) => s.setStandardConversion);
+  const invalidate = useInvalidateStore();
+  return useMutation({
+    mutationFn: (sc: StandardConversion) => api.units.saveStandardConversion(sc),
+    onMutate: (sc) => setStandardConversion(sc),
+    onSettled: () => invalidate(),
+  });
+}
+
+export function useDeleteStandardConversion() {
+  const deleteStandardConversion = useAppStore((s) => s.deleteStandardConversion);
+  const invalidate = useInvalidateStore();
+  return useMutation({
+    mutationFn: (id: string) => api.units.deleteStandardConversion(id),
+    onMutate: (id) => deleteStandardConversion(id),
+    onSettled: () => invalidate(),
+  });
+}