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/delete_test.rs

@@ -0,0 +1,40 @@
+use chrono::NaiveDate;
+use domain::models::wrapup::{WrapUpRecord, WrapUpStatus};
+use domain::testing::InMemoryWrapUpRepository;
+use domain::value_objects::WrapUpId;
+
+use application::wrapup::delete;
+use application::wrapup::deps::DeleteWrapUpDeps;
+
+#[tokio::test]
+async fn deletes_existing_wrapup() {
+    let repo = InMemoryWrapUpRepository::new();
+    let id = WrapUpId::generate();
+    repo.store.lock().unwrap().push(WrapUpRecord {
+        id: id.clone(),
+        user_id: None,
+        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,
+    });
+
+    let deps = DeleteWrapUpDeps {
+        wrapup_repo: repo.clone(),
+    };
+    delete::execute(&deps, id).await.unwrap();
+    assert_eq!(repo.store.lock().unwrap().len(), 0);
+}
+
+#[tokio::test]
+async fn fails_when_not_found() {
+    let repo = InMemoryWrapUpRepository::new();
+    let deps = DeleteWrapUpDeps {
+        wrapup_repo: repo.clone(),
+    };
+    let result = delete::execute(&deps, WrapUpId::generate()).await;
+    assert!(result.is_err());
+}