go0105rev/training

AI Summary: This issue is to verify the communication between the `mentalscale_api` and an `h2-database`. The H2 database is being used for initial setup due to its lower setup cost as it runs in Java memory, though the project will eventually transition to PostgreSQL.

AI Summary: This issue is a request to confirm that the `mentalscale_front` application can successfully communicate with and call the backend API. It also specifies that this verification can alternatively be done using a mobile application (developed with Flutter or Xcode) to ensure API calls from a UI are functional.

AI Summary: This GitHub issue serves as a checklist to confirm basic Git operations (cloning and committing) for two individuals, Kure and Fukushima, across both the `main` (production) and `devt` (development) branches. Kure has completed and confirmed these operations for the `main` branch, while all other checks for both individuals on `devt` and Fukushima on `main` are still pending.

AI Summary: This GitHub issue, titled "mentalscale_api connectivity confirmation," describes a task to verify the API's connectivity by making requests to `http://localhost:8080/test`. The confirmation is successful if an HTTP 200 status code is received along with a response body. Screenshots for both POST and GET requests are provided, likely demonstrating successful outcomes.