feat: full synthetic demo persona — the complete 'see everything' experience

Cargo.toml

@@ -27,6 +27,7 @@ members = [
     "crates/helix-timeline",
     "crates/helix-evolve",
     "crates/helix-refranges",
+    "crates/helix-demo",
     "crates/helix-wasm",
 ]
 

crates/helix-demo/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "helix-demo"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+authors.workspace = true
+repository.workspace = true
+rust-version.workspace = true
+description = "Synthetic, fictional demo dossier (the 'Alex Rivera' persona) that seeds the Helix UI/mobile demo across all six data domains. SAMPLE DATA — not a real person."
+
+[dependencies]
+serde = { workspace = true }
+serde_json = { workspace = true }
+helix-provenance = { path = "../helix-provenance" }
+helix-pipeline = { path = "../helix-pipeline" }
+helix-escalation = { path = "../helix-escalation" }
+helix-focus = { path = "../helix-focus" }
+helix-score = { path = "../helix-score" }
+helix-bioage = { path = "../helix-bioage" }
+helix-timeline = { path = "../helix-timeline" }
+helix-numeric = { path = "../helix-numeric" }

crates/helix-demo/examples/generate.rs

@@ -0,0 +1,25 @@
+//! Regenerate `ui/demo-dossier.json` from the Rust source of truth.
+//!
+//! Run: `cargo run -p helix-demo --example generate`
+//!
+//! The UI (`ui/app.js`) and mobile PWA (`mobile/mobile.js`) fetch that JSON and
+//! feed its records through the real WASM pipeline — so this file is the one
+//! place the synthetic "Alex Rivera" dossier is defined.
+
+use std::path::PathBuf;
+
+fn main() -> std::io::Result<()> {
+    // crate dir → repo root → ui/demo-dossier.json
+    let repo_root = PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+        .join("..")
+        .join("..");
+    let out = repo_root.join("ui").join("demo-dossier.json");
+
+    let json = helix_demo::dossier_json_pretty();
+    std::fs::write(&out, format!("{json}\n"))?;
+
+    let counts = helix_demo::domain_counts();
+    println!("wrote {} ({} bytes)", out.display(), json.len());
+    println!("domain counts: {counts:#}");
+    Ok(())
+}