Feature Request: Merge duckdb-engine into this repo

[chitralverma]

Now that the DuckDB Python bindings have their own dedicated repository under the official DuckDB organization, it would make sense for related projects in the Python ecosystem to be consolidated for consistency, visibility, and easier maintenance.

Currently, the duckdb-engine repository (SQLAlchemy integration for DuckDB) is hosted separately. While functional, this separation can cause:

• Lower visibility to new users looking for official SQLAlchemy support.
• Fragmentation of the DuckDB Python ecosystem.
• Potential confusion over which integrations are officially supported.

By moving duckdb-engine into the DuckDB org, the community gains a clear signal that SQLAlchemy integration is a first-class, officially supported component.

Proposed Solution

• Merge the duckdb-engine repository into this repository or at least under the duckdb org.
• Maintain it along side Python bindings.

This also aligns releases, CI/CD, and documentation with the core DuckDB Python bindings repo for consistency.
And this is very similar to how adbc driver is maintained in this repo.