Struct ServerState 

pub struct ServerState {
    pub repo_root: PathBuf,
    pub host: Arc<MissionHost>,
    pub bind_addr: Option<SocketAddr>,
    pub bind_is_loopback: bool,
}

Shared handler state: the repo root for the read-only routes (all mission data is re-read from disk per request) plus the hosted-engine registry.

Fields

repo_root: PathBuf

host: Arc<MissionHost>

Shared (Arc) so kranz serve --slack can hand the SAME registry to the Slack bridge: web and Slack are two clients of one set of live engines, never two engines fighting over one mission lock.

bind_addr: Option<SocketAddr>

Serve bind address threaded into CORS / WS origin checks. None keeps the test/back-compat wildcard (any loopback host, any port).

bind_is_loopback: bool

Whether the serve bind is loopback. Loopback keeps the strict browser origin allowlist on the WS upgrade (reads are tokenless there, so the Origin check is the guard); off loopback the read token authenticates and IP-literal / missing origins are accepted.