[feature]: Add Unit Test coverage for Utils

## Problem
pkg/utils/query.go and pkg/utils/reflect.go contain pure logic functions critical to the CLI query building for all list commands, and reflection-based config conversion with zero test coverage.

## Proposed Solution
Add unit tests for both files:
- query_test: BuildQueryParam happy paths, input validation, key validation
- reflect_test: ExtractConfigValues, ConvertToConfigurations, ExtractConfigurationsByCategory, IsCategory

Start by reading the pure logic in pkg/utils/query.go and pkg/utils/reflect.go, then inspect the surrounding utils package for test conventions. Add query_test coverage for BuildQueryParam happy paths, input validation, and key validation, plus reflect_test coverage for ExtractConfigValues, ConvertToConfigurations, ExtractConfigurationsByCategory, and IsCategory. Done means both files have meaningful unit coverage for the listed behavior.

Written by the indexing model from the issue text.