fix: getCombinationId 오타 수정

src/services/myService.js

@@ -74,9 +74,8 @@ const myService = {
     return { code };
   },
 
-  async getCombinationId(req, res) {
-    const { code } = req.params;
-    const transactionIdKey = `mypc:code:${code}:transectionId`;
+  async getCombinationId(code) {
+    const transactionIdKey = `mypc:code:${code}:transaction_id`;
     
     try {
       const transactionId = await Redis.get(transactionIdKey);