clippy: fix doc_lazy_continuation on TopicListItem.runs_failed

crates/cm-api/src/routes/research.rs

@@ -408,10 +408,11 @@ pub struct TopicListItem {
     pub updated_at: String,
     /// queued + running topology_runs bound to this topic.
     pub runs_in_flight: i64,
-    /// failed runs since the last successful run (or all-time if none).
-    /// > 0 with `runs_in_flight == 0` and `status == "processing"` is
-    /// the errored-but-not-terminal state — frontend swaps the spinner
-    /// for an error icon and offers a rerun.
+    /// Failed runs since the last successful run (or all-time if
+    /// none). A positive value combined with `runs_in_flight == 0`
+    /// and `status == "processing"` is the errored-but-not-terminal
+    /// state — frontend swaps the spinner for an error icon and
+    /// offers a rerun.
     pub runs_failed: i64,
 }