gatewayd: approvals answered from Mattermost; typing paused; the notice

Implemented-By: OpenCode session (model recorded in docs/implementer-log.md)

crates/gatewayd/tests/serve.rs

@@ -17,7 +17,7 @@ use fake_loop::{done, serve_loop};
 use fake_mm::{BOT, BOT_NAME, DM, EVE, EVE_DM, FakeMm, KYLE, id, post};
 use gateway::{OTHER, SHARED, WAIT, config, loop_dir, read_state, start, up};
 use gatewayd::serve::Stop;
-use gatewayd::sessions::{BUSY, M4B_COMMAND};
+use gatewayd::sessions::BUSY;
 use tmp::TempDir;
 
 #[test]
@@ -204,7 +204,11 @@ fn commands_are_answered_without_a_turn() {
     ws.posted(&post(&p1, KYLE, DM, "", "!approve 3", 5), "D");
     assert_eq!(
         mm.wait_posts(1, WAIT),
-        [(DM.to_string(), p1, M4B_COMMAND.to_string())]
+        [(
+            DM.to_string(),
+            p1,
+            "approval 3 is not pending here".to_string()
+        )]
     );
     assert!(turns.recv_timeout(Duration::from_millis(200)).is_err());
 }