### What problem does this PR solve?
feat(File Management): Refactor File List API and Add Knowledge Base
Document Initialization
- Migrate the file list API endpoint from `/v1/file/list` to
`/api/v1/files` to align with the Python implementation.
- Add logic for initializing knowledge base documents; automatically
create the `.knowledgebase` folder and associated documents when
retrieving the root directory.
- Enhance parameter validation and error handling, including the
introduction of a new `CodeParamError` error code.
- Optimize the file list response structure to match the implementation
on the Python side.
- Update the Vite configuration to support proxying the new
`/api/v1/files` endpoint.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
1. Add more CLI command
2. Add some license hooks
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
- [x] Refactoring
Signed-off-by: Jin Hai <haijin.chn@gmail.com>
### What problem does this PR solve?
Feat：Using Go to implement user registration logic
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
