test: move application tests to tests/

test_support/test_helpers -> tests/support; watched_at unified w/ domain test_watched_at (2024-03-15).
Kept inline: users::diary_filter tests (feed_sort_to_direction_all_variants, paged_user_filter_builds_correctly) - pub(super) helpers in private module.
Dropped stale never-compiled users/tests/get_users.rs (old execute signature).

crates/application/tests/wrapup/list_wrapups_test.rs

@@ -0,0 +1,62 @@
+use chrono::NaiveDate;
+use domain::models::wrapup::{WrapUpRecord, WrapUpStatus};
+use domain::testing::InMemoryWrapUpRepository;
+use domain::value_objects::WrapUpId;
+use uuid::Uuid;
+
+use application::wrapup::deps::ListWrapUpsDeps;
+use application::wrapup::list_wrapups::{self, ListWrapUpsQuery};
+
+fn make_record(user_id: Option<Uuid>) -> WrapUpRecord {
+    WrapUpRecord {
+        id: WrapUpId::generate(),
+        user_id,
+        start_date: NaiveDate::from_ymd_opt(2024, 1, 1).unwrap(),
+        end_date: NaiveDate::from_ymd_opt(2025, 1, 1).unwrap(),
+        status: WrapUpStatus::Ready,
+        report: None,
+        error_message: None,
+        created_at: chrono::Utc::now().naive_utc(),
+        completed_at: None,
+    }
+}
+
+#[tokio::test]
+async fn filters_by_user() {
+    let repo = InMemoryWrapUpRepository::new();
+    let uid = Uuid::new_v4();
+    {
+        let mut store = repo.store.lock().unwrap();
+        store.push(make_record(Some(uid)));
+        store.push(make_record(Some(Uuid::new_v4())));
+        store.push(make_record(None));
+    }
+
+    let deps = ListWrapUpsDeps {
+        wrapup_repo: repo.clone(),
+    };
+    let result = list_wrapups::execute(&deps, ListWrapUpsQuery { user_id: Some(uid) })
+        .await
+        .unwrap();
+    assert_eq!(result.len(), 1);
+    assert_eq!(result[0].user_id, Some(uid));
+}
+
+#[tokio::test]
+async fn returns_global_when_no_user() {
+    let repo = InMemoryWrapUpRepository::new();
+    {
+        let mut store = repo.store.lock().unwrap();
+        store.push(make_record(None));
+        store.push(make_record(None));
+        store.push(make_record(Some(Uuid::new_v4())));
+    }
+
+    let deps = ListWrapUpsDeps {
+        wrapup_repo: repo.clone(),
+    };
+    let result = list_wrapups::execute(&deps, ListWrapUpsQuery { user_id: None })
+        .await
+        .unwrap();
+    assert_eq!(result.len(), 2);
+}