[Summary] Migrate new features internally to the community

### Search before asking

- [X] I had searched in the [feature](https://github.com/apache/incubator-hugegraph-toolchain/issues?q=is%3Aissue+label%3A%22Feature%22) and found no similar feature requirement.

### Feature Description (功能描述)

As title, more details will come soon~

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#### HugeGraph Test

#### Java-Client

#### Go-Client

#### Loader

#### Hubble

#### Tools

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### Are you willing to submit a PR?

- [ ] Yes I am willing to submit a PR!

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)

The issue lists HugeGraph Test, Java-Client, Go-Client, Loader, Hubble, and Tools, but provides no files, entry points, detailed requirements, or acceptance criteria. Start by defining which new features and modules are in scope; the work is done only when the migration scope and expected behavior for each affected module are specified.

Written by the indexing model from the issue text.