feat: add config endpoint

src/stores/config/index.ts

@@ -0,0 +1,23 @@
+import { defineStore } from 'pinia';
+import { api } from 'src/boot/axios';
+import { ref } from 'vue';
+
+export const useConfigStore = defineStore('config-store', () => {
+  const data = ref<AppConfig>();
+
+  return {
+    data,
+
+    async getConfig() {
+      if (data.value) return data.value;
+
+      const res = await api.get<AppConfig>('/config');
+
+      if (res.status < 400) {
+        data.value = res.data;
+      }
+
+      return data.value;
+    },
+  };
+});

src/stores/config/types.ts

@@ -0,0 +1,3 @@
+type AppConfig = {
+  vat: number;
+};