Provide Placeholder Database Credentials for Contributors

[daizenj]

Description

As an outsider looking to contribute to the project, I've noticed that the current setup assumes that contributors have access to the specific database credentials used in the application. Similar to what was done for the celts repo

Suggested Action

It would be helpful if the repository included a template or placeholder for the secret_config.yaml file, containing generic or sample database credentials. This would make it easier for contributors to set up and run the application locally without requiring access to the actual database.

Example Placeholder secret_config.yaml

db:
  db_name: your_database_name
  host: localhost
  username: your_database_username
  password: your_database_password