Add log statements to project and configure log level

[polatengin]

As a project developer, I want an application wide log level configured, and I want each existing log statement to have an appropriate level applied, so that application-wide log output becomes configurable

• Explanatory log statements added to project code, where missing
• Appropriate log level applied to all log statements
• Application wide log level configured (e.g. https://learn.microsoft.com/en-us/aspnet/core/fundamentals/logging/?view=aspnetcore-7.0#configure-logging)

[polatengin]

Mentioned in #413