huskies: merge 1174 story Gateway startup announcement reports version and model

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

@@ -11,10 +11,18 @@ pub fn format_startup_announcement(bot_name: &str) -> String {
 
 /// Format the ready announcement sent after a successful gateway trampoline restart.
 ///
-/// Returns "gateway X.Y.Z ready" using the compiled-in crate version so the
-/// operator can confirm which binary is running after a rebuild.
-pub fn format_gateway_ready_announcement() -> String {
-    format!("gateway {} ready", env!("CARGO_PKG_VERSION"))
+/// Returns "gateway X.Y.Z (git_hash) ready — model: <model>" using the compiled-in
+/// crate version (same source as `/api/version`), the given git hash, and the
+/// configured chat model, so the operator can confirm which binary and model are
+/// running after a rebuild. `git_hash` should already have been resolved to
+/// `"unknown"` by the caller if unavailable. `model` is `None` when `bot.toml`
+/// has no `model` override configured, in which case the CLI's own default applies.
+pub fn format_gateway_ready_announcement(git_hash: &str, model: Option<&str>) -> String {
+    format!(
+        "gateway {} ({git_hash}) ready — model: {}",
+        env!("CARGO_PKG_VERSION"),
+        model.unwrap_or("default")
+    )
 }
 
 /// Format the failure announcement sent when the trampoline rolls back to the
@@ -170,6 +178,38 @@ mod tests {
         );
     }
 
+    #[test]
+    fn gateway_ready_announcement_includes_version_hash_and_model() {
+        let msg = format_gateway_ready_announcement("abc1234", Some("claude-sonnet-5"));
+        assert!(
+            msg.contains(env!("CARGO_PKG_VERSION")),
+            "expected crate version in announcement: {msg}"
+        );
+        assert!(msg.contains("abc1234"), "expected git hash: {msg}");
+        assert!(
+            msg.contains("claude-sonnet-5"),
+            "expected configured model: {msg}"
+        );
+    }
+
+    #[test]
+    fn gateway_ready_announcement_renders_unknown_git_hash_cleanly() {
+        let msg = format_gateway_ready_announcement("unknown", Some("claude-sonnet-5"));
+        assert!(
+            msg.contains("unknown"),
+            "expected 'unknown' fallback for missing git hash: {msg}"
+        );
+    }
+
+    #[test]
+    fn gateway_ready_announcement_falls_back_to_default_when_model_absent() {
+        let msg = format_gateway_ready_announcement("abc1234", None);
+        assert!(
+            msg.contains("default"),
+            "expected 'default' fallback when no model configured: {msg}"
+        );
+    }
+
     #[test]
     fn bot_name_defaults_to_assistant_when_display_name_absent() {
         // When display_name is not set in bot.toml, bot_name should be "Assistant".

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

@@ -414,12 +414,15 @@ pub async fn run_bot(
     // blip or sync resumption.
     //
     // When started by the trampoline the message is specialised:
-    //   - HUSKIES_TRAMPOLINE_STARTED=1  → "gateway X.Y.Z ready"
+    //   - HUSKIES_TRAMPOLINE_STARTED=1  → "gateway X.Y.Z (git_hash) ready — model: ..."
     //   - HUSKIES_TRAMPOLINE_FAILURE=<reason> → rollback failure notice
     let announce_msg = if let Ok(reason) = std::env::var("HUSKIES_TRAMPOLINE_FAILURE") {
         super::format::format_gateway_rollback_announcement(&reason)
     } else if std::env::var("HUSKIES_TRAMPOLINE_STARTED").is_ok() {
-        super::format::format_gateway_ready_announcement()
+        super::format::format_gateway_ready_announcement(
+            option_env!("BUILD_GIT_HASH").unwrap_or("unknown"),
+            config.model.as_deref(),
+        )
     } else {
         format_startup_announcement(&announce_bot_name)
     };