Preserve nested architecture during authoring and distinguish allocation summaries

crates/oa-core/examples/generate_demo.rs

@@ -0,0 +1,23 @@
+//! Regenerate both distributable forms from one model, preserving shared IDs.
+use oa_core::{Project, persistence};
+use std::path::PathBuf;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let directory = std::env::args_os()
+        .nth(1)
+        .map(PathBuf::from)
+        .unwrap_or_else(|| PathBuf::from("examples"));
+    let project = Project::demo();
+    let source = directory.join("coastal-rescue.arcadia");
+    let json = directory.join("coastal-rescue.json");
+    persistence::save(&source, &project)?;
+    persistence::save(&json, &project)?;
+    assert_eq!(persistence::load(&source)?, project);
+    assert_eq!(persistence::load(&json)?, project);
+    println!(
+        "Wrote and verified {} and {}",
+        source.display(),
+        json.display()
+    );
+    Ok(())
+}