Terrana: Zero-Config Spatial API Server

Terrana is a zero-config spatial API server written in Rust. Point it at a CSV, Parquet, or GeoJSON file containing lat/lon columns and immediately get a REST API with spatial queries (radius, bounding box, nearest neighbor, point-in-polygon) and geodesic geometry operations (area, convex hull, buffer, dissolve, simplify, distance) — no database setup, no PostGIS, no infrastructure. Built on DuckDB (bundled) with R-tree spatial indexing and the geo crate for WGS 84 geodesic computations.