refactor: GCP server로 rollback

[ekdan38]

🔥ISSUE

GCP server로 rollback

[gemini-code-assist]

Code Review

This pull request updates the production Docker Compose configuration by migrating the application image source to GCP Artifact Registry and exposing the MySQL database port. A security concern was raised regarding the exposure of the database port (3306) to the host, which could pose a risk in a production environment.

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docker-compose.prod.yml (8-9)

Exposing the database port (3306) directly to the host in a production environment poses a security risk. Unless there is a specific requirement for external access, this port should be removed or restricted to localhost access only.