feat: add functional authentication

api/routes/account/create.ts

@@ -0,0 +1,18 @@
+import { AccountEmailClaimedError } from "@spec/schemas/account/errors.ts";
+import { create } from "@spec/schemas/account/routes.ts";
+
+import { Account, isEmailClaimed } from "~stores/event-store/aggregates/account.ts";
+import { eventStore } from "~stores/event-store/event-store.ts";
+
+export default create.access("public").handle(async ({ body: { name, email } }) => {
+  if ((await isEmailClaimed(email)) === true) {
+    return new AccountEmailClaimedError(email);
+  }
+  return eventStore.aggregate
+    .from(Account)
+    .create()
+    .addName(name)
+    .addEmailStrategy(email)
+    .save()
+    .then((account) => account.id);
+});