Add sorting helper package with generic functions for sorting
resources by name (cluster-scoped) or namespace/name (namespace-scoped).
Apply sorting to:
- TenantNamespace (by name)
- TenantSecret (refactored to use helper)
- TenantModule (new)
- Application (new)
Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
