Fix schema

postgres/schema/0009_transactions.sql

@@ -0,0 +1,16 @@
+-- +goose Up
+CREATE TABLE transactions (
+    id uuid DEFAULT uuid_generate_v4() PRIMARY KEY,
+    date date NOT NULL,
+    memo text NOT NULL,
+    amount decimal(12,2) NOT NULL,
+    account_id uuid NOT NULL REFERENCES accounts (id),
+    category_id uuid REFERENCES categories (id),
+    payee_id uuid REFERENCES payees (id)
+);
+ALTER TABLE "transactions" ADD FOREIGN KEY ("account_id") REFERENCES "accounts" ("id");
+ALTER TABLE "transactions" ADD FOREIGN KEY ("payee_id") REFERENCES "payees" ("id");
+ALTER TABLE "transactions" ADD FOREIGN KEY ("category_id") REFERENCES "categories" ("id");
+
+-- +goose Down
+DROP TABLE transactions;