- @lit-labs/ssr and lit removed: the hydrate round-trip produced only four
  inert lit-part comments, and with them goes the deprecated node-domexception
  chain. Clean install drops from 65 to 53 packages, no deprecation warning.
- hydrate: true keeps its real effect (spoiler-reveal script)
- New inlineAssets option: embeds the component runtime and emoji so a
  transcript opens with zero external requests (offline-capable)
- New inlineAssetsTimeout option (default 30000 ms)