geointel/docs/CODEX_PHASE_4_PROMPT.md

Codex Phase 4 Prompt — Raster and Vector Core

Read all M0/M1 docs first. Implement the first real geospatial processing layer.

Goals

• Raster metadata extraction service.
• Vector metadata extraction service.
• Vector GeoJSON import into PostGIS.
• Area clipping for vector fixtures.
• Building stats analyzer using vector polygons.

Requirements

• Use Rasterio for raster metadata when available.
• Use GeoPandas/Shapely for vector processing.
• Preserve CRS metadata.
• Return unsupported_dataset_type for unsupported files.
• Add tests with small fixtures.

Done when

• Backend tests pass.
• Project/area/dataset flows still work.
• A vector fixture can be registered/imported and analyzed.
• Docs/log updated.