chore: checkpoint before Python removal

vendor/oid-registry/build.rs

@@ -0,0 +1,15 @@
+use std::env;
+
+include!("src/load.rs");
+
+fn main() -> Result<()> {
+    println!("cargo:rerun-if-changed=assets/oid_db.txt");
+
+    let out_dir = env::var_os("OUT_DIR").unwrap();
+    let dest_path = Path::new(&out_dir).join("oid_db.rs");
+
+    let m = load_file("assets/oid_db.txt")?;
+    generate_file(&m, dest_path)?;
+
+    Ok(())
+}