Add real building heights for Spain from the Cadastre (Catastro)

Cargo.toml

@@ -44,6 +44,7 @@ rand = { version = "0.9.3", features = ["std", "std_rng"] }
 rand_chacha = "0.9"
 rayon = "1.10.0"
 reqwest = { version = "0.13.1", features = ["blocking", "json", "query"] }
+roxmltree = "0.20"
 rfd = { version = "0.16.0", optional = true }
 semver = "1.0.27"
 parquet = { version = "58", default-features = false, features = ["snap", "zstd"] }

src/args.rs

@@ -71,6 +71,13 @@ pub struct Args {
     #[arg(long = "no-3d", default_value_t = true, action = ArgAction::SetFalse)]
     pub use_3d: bool,
 
+    /// Use real building heights from the Spanish Cadastre (Catastro).
+    /// Fetches the number of floors per building from the Catastro INSPIRE WFS
+    /// for the selected area and applies it to OSM buildings that lack a height.
+    /// Spain only (excludes the Basque Country and Navarra).
+    #[arg(long, default_value_t = false)]
+    pub catastro: bool,
+
     /// Enable debug mode (optional)
     #[arg(long)]
     pub debug: bool,