* feat: Enhance plugin signing with authorized category verification
- Added support for an `authorized_category` flag in the signature command to validate the category before signing.
- Updated the `Sign` function to accept a verification parameter, allowing for category-based signing.
- Enhanced error handling for invalid categories during the signing process.
- Updated tests to cover new verification scenarios and ensure proper functionality with the authorized category.
* fix
* fix
* test
* test: Add unit test for plugin verification without verification field
- Introduced a new test case to verify the behavior of plugins that lack a verification field.
- Updated the signature_test.go file to include the test, ensuring proper functionality of the signing process.
- Removed the outdated verifier_test.go file and associated test data to streamline the codebase.
Yeuoly