message: Add flowchart for `ReactorState`
diff: @@ -4,6 +4,21 @@ use schemars::JsonSchema;
  use serde::{Deserialize, Serialize};
  /// The state of the reactor.
  +#[cfg_attr(doc, aquamarine::aquamarine)]
  +/// ```mermaid
  +/// flowchart TD
  +/// Initialize --> CatchUp
  +/// CatchUp --> KeepUp
  +/// KeepUp --> CatchUp
  +/// KeepUp --> Validate
  +/// Validate --> KeepUp
  +/// CatchUp --> ShutdownForUpgrade
  +/// KeepUp --> ShutdownForUpgrade
  +/// Validate --> ShutdownForUpgrade
  +/// CatchUp --> Upgrading
  +/// CatchUp --> Validate
  +/// Upgrading --> CatchUp
  +/// ```
  #[derive(
  Copy, Clone, PartialEq, Eq, Serialize, Deserialize, DataSize, Debug, Display, JsonSchema,
  )]
  