Add migration for account balance to time series

prisma/migrations/20230723104112_added_account_balances_to_account/migration.sql

@@ -13,3 +13,15 @@ CREATE TABLE "AccountBalance" (
 
 -- AddForeignKey
 ALTER TABLE "AccountBalance" ADD CONSTRAINT "AccountBalance_accountId_userId_fkey" FOREIGN KEY ("accountId", "userId") REFERENCES "Account"("id", "userId") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- Migrate current account balance to time series (AccountBalance[])
+INSERT INTO "AccountBalance" ("accountId", "createdAt", "date", "id", "updatedAt", "userId", "value")
+SELECT
+    "id",
+    "createdAt",
+    "createdAt",
+    "id",
+    "createdAt",
+    "userId",
+    "balance"
+FROM "Account";