[KYUUBI #6497][DOC] Document Apache Superset integration

[wayne-x-wang]

Why are the changes needed?

The Apache Superset page currently contains only an incomplete-document warning.

This patch documents the required database driver, the SQLAlchemy connection URI, and query verification in SQL Lab. It also includes a reproducible driver installation workaround for containers without a C++ compiler.

Closes #6497.

How was this patch tested?

Manually verified on macOS ARM64 with:

• Apache Superset 6.1.0
• Apache Kyuubi 1.11.0
• Apache Spark 3.5.7
• PyHive 0.7.0

Verification:

• Installed the documented driver dependencies in the Superset containers.
• Successfully tested and saved the Apache Hive connection to Kyuubi.
• Executed SELECT 1 AS test_value in SQL Lab and received one row with value 1.
• Queried tpcds.tiny.customer with LIMIT 5 and received five rows with the three selected columns.

Local checks:

• dev/reformat: BUILD SUCCESS.
• git diff --check: passed.
• Sphinx HTML build: succeeded with five substitution warnings in the unchanged docs/configuration/settings.md.
• Verified the generated page's section anchors and internal documentation links.

No automated unit tests were added because this change only updates documentation.

Was this patch assisted by generative AI tooling?

Assisted-by: OpenAI Codex with GPT-6 Astra

[github-actions]

Hello @wayne-x-wang,
Thanks for finding the time to submit the Pull request, the Kyuubi community thanks you！
We really appreciate the community's efforts to improve Apache Kyuubi.
If you are new to Apache Kyuubi for code changes, please take some time to read our contributing guide.

[pan3793]

Merge Summary:

• merged into master de0ea37

Posted by merge_kyuubi_pr.py