- render_html includes the inline SVG map + inline fetch('/api/state') poller
+ tooltip mount + live clock, stays offline (no CDN), keeps the <noscript>
meta-refresh fallback, and renders the map even on a not-ok snapshot.
- snapshot_to_dict: expected top-level keys, one entry per STAGE in order,
per-phase grouping, awaiting-human classification (open pending_question),
per-node model/agent role labels, summary counts, not-ok serializability.
- Descriptions escaped in BOTH the HTML and the JSON-in-script seed
(</script><script> breakout neutralised; \u003c form present); the raw
/api/state JSON round-trips the description for textContent rendering.
- End-to-end snapshot_to_dict over the seeded ledger.
