Province geometry: alpers/Turkey-Maps-GeoJSON, Apache License 2.0.
https://github.com/alpers/Turkey-Maps-GeoJSON
Derived changes: names normalized; coordinates projected to SVG paths; per-province bounds calculated.

District geometry: geoBoundaries gbOpen TUR ADM2, 2021 boundaries, release 9469f09.
Source: OpenStreetMap contributors, OSM Boundaries. Open Data Commons Open Database License 1.0.
https://www.geoboundaries.org/api/current/gbOpen/TUR/ADM2/
https://www.openstreetmap.org/copyright
https://opendatacommons.org/licenses/odbl/1-0/
Derived database in /maps/districts/*.json is available under ODbL 1.0.
Changes: matched to Turkish province/district names, projected to SVG coordinates, split by province.
Province and district shapes are for regional exploration, not cadastral or legal boundary use.

Province/district names (neighborhoods not retained):
https://github.com/hsndmr/turkiye-city-county-district-neighborhood