2.1.3 CRS (Coordinate Reference System) Handling

[Yuvraj198920]

As a geospatial analyst
I want to dataset CRS properly recognized by GDAL/QGIS
So that my data aligns correctly with other datasets

Acceptance Criteria:

• WGS84 (EPSG:4326) set as default CRS
• Accessible via GetSpatialRef()
• QGIS recognizes projection automatically
• Reprojection via gdalwarp works
• CRS info logged in metadata
• Handles both geographic and projected data

Tasks:

1. Implement GetSpatialRef() method
2. Create PROJ pipeline for slant-range → geographic
3. Test with gdalwarp
4. Verify QGIS compatibility