Replace InputFile with RadzenUpload in filter panels for better UX,
switch to ephemeral RSA keys (safe for transport-only encryption),
and add test scripts and documentation files.
Add ConfigurationValidationRunner with IConfigurationValidator interface for
validating required settings at startup. Includes SecureStore and LDAP validators.
Expand ConfigManager with pipeline editing UI, dialogs, and step editors.
Update documentation with config validation guidance.
Joseph Doherty