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.
Eliminates placeholder substitution (${KEY}) in favor of storing complete
connection strings as single encrypted values. SecureStore now auto-creates
entries for all connection strings defined in appsettings. ConfigManager
editor reads/writes values directly to SecureStore.
Enable ConfigManager to validate runtime configuration (SecureStore secrets,
connection strings, LDAP) using the same validators as the Host application.
Adds AddInfrastructureValidators() extension for shared validator registration.
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.
Move configuration options from Core/DataAccess/DataSync/ExcelIO to
dedicated Options folders within each project for better organization.
Update all references and tests accordingly.
Set up repository with legacy .NET Framework 4.8 source (OLD/),
new .NET 10 Blazor solution (NEW/), OpenSpec specifications,
documentation, and project configuration.