test: shared factories and command builders

crates/adapters/sqlite/src/repositories/users/tests.rs

@@ -1,6 +1,5 @@
 use super::*;
-use domain::models::UserRole;
-use domain::value_objects::{Email, PasswordHash, Username};
+use domain::testing::test_user;
 use sqlx::SqlitePool;
 
 async fn setup() -> (SqlitePool, SqliteUserRepository) {
@@ -55,12 +54,7 @@ async fn find_by_id_returns_user_when_found() {
 #[tokio::test]
 async fn update_profile_persists_bio_and_avatar() {
     let (_, repo) = setup().await;
-    let user = domain::models::User::new(
-        Email::new("test@example.com".to_string()).unwrap(),
-        Username::new("testuser".to_string()).unwrap(),
-        PasswordHash::new("hash".to_string()).unwrap(),
-        UserRole::Standard,
-    );
+    let user = test_user("testuser");
     repo.save(&user).await.unwrap();
 
     repo.update_profile(
@@ -82,12 +76,7 @@ async fn update_profile_persists_bio_and_avatar() {
 #[tokio::test]
 async fn update_profile_clears_fields_with_none() {
     let (_, repo) = setup().await;
-    let user = domain::models::User::new(
-        Email::new("test2@example.com".to_string()).unwrap(),
-        Username::new("testuser2".to_string()).unwrap(),
-        PasswordHash::new("hash".to_string()).unwrap(),
-        UserRole::Standard,
-    );
+    let user = test_user("testuser2");
     repo.save(&user).await.unwrap();
     repo.update_profile(
         user.id(),