packaging: Homepage URL in pyproject.toml points at the wrong repo; add full `[project.urls]`

[Koukyosyumei]

Problem

pyproject.toml currently has:

[project.urls]
Homepage = "https://github.com/Koukyosyumei/h5i"

Two issues with this:

1. Wrong repo. The URL points at the old-org engine repository, not this SDK. This project lives at https://github.com/h5i-dev/h5i-python (and the engine at https://github.com/h5i-dev/h5i). PyPI renders these links prominently on the project page, so anyone installing h5i-orchestra from PyPI is sent to the wrong place.
2. Sparse metadata. Homepage is the only entry. PyPI supports (and users expect) Repository, Issues, and Documentation links.

Suggested fix

[project.urls]
Homepage = "https://github.com/h5i-dev/h5i-python"
Repository = "https://github.com/h5i-dev/h5i-python"
Issues = "https://github.com/h5i-dev/h5i-python/issues"

(Optionally add a Documentation entry once docs have a stable home.)

~5-line change in pyproject.toml, no code involved. You can sanity-check the result with python -m build or just hatchling's metadata output.

[AshSgDe29071999]

I'd like to take this

[kevinnft]

PR submitted: #15