code cleanup

CHANGELOG.md

config/example-config.yaml

internal/config/config.go

internal/db/cluster/cluster.go

internal/db/dbmigrate/scripts/v0.3.0.pre.sql

internal/db/dbmigrate/scripts/v0.4.0.pre.sql

internal/db/dbrepo/authcodeinforepo/authcodeInfo.go

internal/db/dbrepo/sshrepo/sshrepo.go

internal/endpoints/settings/grants/grants.go

...al/endpoints/settings/grants/pkg/grantTypeInfoResponse.go

internal/endpoints/settings/grants/pkg/grantTypeRequest.go

...rnal/endpoints/settings/grants/ssh/pkg/sshInfoResponse.go

...al/endpoints/settings/grants/ssh/pkg/sshKeyAddResponse.go

internal/endpoints/settings/grants/ssh/pkg/sshKeyRequests.go

internal/endpoints/settings/grants/ssh/ssh.go

...nal/endpoints/token/mytoken/pkg/tokenUpdatableResponse.go

internal/endpoints/token/mytoken/polling/pollingEndpoint.go

internal/server/api.go

internal/server/errorHandler.go

internal/server/server.go