feat: Shared knowledge problem related permission constant

[shaohuzhang1]

feat: Shared knowledge problem related permission constant

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[shaohuzhang1]

The provided code snippet looks mostly clear and follows a consistent structure, but there are no obvious irregularities or errors. However, here are a few suggestions for improvement:

1. Consistent Indentation: Ensure that all elements under each Permission constant have consistent indentation to maintain readability.

2. Variable Naming: The variable names are already in snake_case, which is generally a good practice for constants. If you're using a more explicit naming convention (e.g., PascalCase), consider adopting it consistently throughout the module.

3. Comments: Adding comments can help clarify the purpose of this section if additional context was omitted. For example, what exactly does each permission represent?

4. Duplicated Parent Groups: There are repeated mentions of SystemGroup.SHARED_KNOWLEDGE in both SHARED_KNOWLEDGE_PROBLEM and SHARED_KNOWLEDGE_HIT_TEST. This might be redundant unless there's intentional duplication intended.

Overall, the current implementation meets most best practices for declaring permissions within an enumeration.