feat(auth): disable auth option

[dan-online]

Description

auth:
  enabled: false

$ curl -X POST http://localhost:2875/login
{"status":"ok"}

Ref #92

Type of change

• Bug (non-breaking change which fixes an issue)
• Feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation (addition or change to documentation)