huskies: merge 1149 story huskies health chat command — surface gateway, sled, matrix, creds, and build-hash status

server/src/chat/transport/matrix/bot/context.rs

@@ -6,6 +6,7 @@ use crate::services::Services;
 use matrix_sdk::ruma::{OwnedEventId, OwnedRoomId, OwnedUserId};
 use std::collections::{BTreeMap, HashSet, VecDeque};
 use std::sync::Arc;
+use std::sync::atomic::AtomicI64;
 use tokio::sync::Mutex as TokioMutex;
 use tokio::sync::RwLock;
 
@@ -104,6 +105,10 @@ pub struct BotContext {
     /// Used by the "rebuild gateway" command to construct the health-check URL
     /// passed to the trampoline.  `None` in standalone single-project mode.
     pub gateway_port: Option<u16>,
+    /// Timestamp (ms since Unix epoch) of the last Matrix event received in any
+    /// configured room.  Updated atomically on every `on_room_message` call so
+    /// the `health` command can detect a stale or dead sync loop.
+    pub last_matrix_event_ms: Arc<AtomicI64>,
 }
 
 impl BotContext {
@@ -299,6 +304,7 @@ mod tests {
                 SEEN_EVENT_IDS_CAP,
             ))),
             gateway_port: None,
+            last_matrix_event_ms: Arc::new(AtomicI64::new(chrono::Utc::now().timestamp_millis())),
         }
     }