Store Module - Delete Store

**Checklist**
- [x] Store DAO - deleteStore
- [x] Store Service - deleteStore

**Estimated Time**
3 hours

**Actual Time**
- Store DAO: 2.5 hours
- Store Service: 0.5 hour

**Progress**
Store DAO: Set up the database connection. Implemented the 'delete store' method to insert store data into the database.
Store Service: Created the service layer to handle business logic. Added the 'delete store' method to interact with the DAO and perform validation.

**Completion Steps**

- [ ] Code review and testing
- [x] Push the code to GitHub
- [ ] Close this issue

**Labels**
- Estimation
- Actual Time
- In Progress
- Completed

Review the existing Store DAO and Store Service deleteStore work described in the issue, then identify the project’s available testing entry points. Complete the pending code review and testing, with the issue checklist fully checked and the delete-store behavior verified.

索引モデルが issue の本文から書いたものです。