swarm-queue-based lifecycle notices, replacing push_todo(MANAGER_AGENT)

swarm-queue-client/src/lib.rs

@@ -115,6 +115,14 @@ pub enum Error {
         #[source]
         source: async_nats::jetstream::context::CreateKeyValueError,
     },
+
+    #[cfg(feature = "notices")]
+    #[error("creating the {stream} stream")]
+    CreateStream {
+        stream: &'static str,
+        #[source]
+        source: async_nats::jetstream::context::CreateStreamError,
+    },
 }
 
 /// Render an error and its source chain on one line.
@@ -165,6 +173,12 @@ pub mod status;
 /// permitted at all — speaks neither `jetstream` nor `kv`.
 pub const KNOWLEDGE_SUBJECT: &str = "$SWARM.knowledge";
 
+/// The hive-notices stream, shared by the hive that publishes and
+/// whatever eventually consumes it. Behind the `notices` feature, same
+/// reason `status` is behind `kv` — see the module doc.
+#[cfg(feature = "notices")]
+pub mod notices;
+
 /// Only the fields this needs; authelia returns several.
 #[derive(serde::Deserialize)]
 struct TokenResponse {