* fix: oidc issuer path and strip path middleware
This ensures the server.path requests append the base_url to the oidc well-known issuer information and adjusts server.path configuration to only strip the configured path instead of the first level entirely regardless of its content.
* fix: only log the token error and general refactoring
* refactor: factorize base_url functions
* refactor(server): include all paths in startup logging
* refactor: factorize
* refactor: GetExternalRootURL -> ExternalRootURL
Co-authored-by: James Elliott <james-d-elliott@users.noreply.github.com>
