feat: authentication integration

web/src/store/db.ts

@@ -0,0 +1,29 @@
+import { openDB, type IDBPDatabase } from "idb";
+import { create } from "zustand";
+
+export interface IDbStore {
+  db: IDBPDatabase | null;
+  connecting: boolean;
+  connect: () => void;
+}
+
+export const useDbStore = create<IDbStore>((set, get) => ({
+  db: null,
+  connecting: false,
+  connect: async () => {
+    if (get().connecting) return;
+
+    set({ connecting: true, db: null });
+    const dbPromise = openDB("guard-local", 3, {
+      upgrade: (db) => {
+        if (!db.objectStoreNames.contains("accounts")) {
+          db.createObjectStore("accounts", { keyPath: "accountId" });
+        }
+      },
+    });
+
+    const conn = await dbPromise;
+
+    set({ db: conn, connecting: false });
+  },
+}));