Add schema migration

prisma/migrations/20230723104112_added_account_balances_to_account/migration.sql

@@ -0,0 +1,15 @@
+-- CreateTable
+CREATE TABLE "AccountBalance" (
+    "accountId" TEXT NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "date" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "id" TEXT NOT NULL,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+    "userId" TEXT NOT NULL,
+    "value" DOUBLE PRECISION NOT NULL,
+
+    CONSTRAINT "AccountBalance_pkey" PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "AccountBalance" ADD CONSTRAINT "AccountBalance_accountId_userId_fkey" FOREIGN KEY ("accountId", "userId") REFERENCES "Account"("id", "userId") ON DELETE CASCADE ON UPDATE CASCADE;