feat(admin): observability — job history, live now-analyzing, durations & metrics (0.84.0) (#6)

backend/tests/analysis_worker.rs

@@ -158,6 +158,16 @@ async fn worker_reanalyzes_done_page_when_forced(pool: PgPool) {
     handle.shutdown().await;
 
     assert_eq!(dispatcher.call_count(), 1, "force must re-dispatch");
+
+    // The worker stamps how long the dispatch took onto the existing row
+    // (recorded after ack; shutdown has awaited the in-flight job).
+    let dur: Option<i64> =
+        sqlx::query_scalar("SELECT duration_ms FROM page_analysis WHERE page_id = $1")
+            .bind(page_id)
+            .fetch_one(&pool)
+            .await
+            .unwrap();
+    assert!(dur.is_some(), "worker should record analysis duration_ms");
 }
 
 #[sqlx::test(migrations = "./migrations")]