feat: Implement random password and token generation for tests

tests/test_auth_repositories.py

@@ -15,6 +15,7 @@ from services.repositories import (
     ensure_default_roles,
 )
 from services.unit_of_work import UnitOfWork
+from tests.utils.security import random_password
 
 
 @pytest.fixture()
@@ -60,7 +61,7 @@ def test_user_repository_assign_and_revoke_role(session: Session) -> None:
     user = User(
         email="user@example.com",
         username="user",
-        password_hash=User.hash_password("secret"),
+        password_hash=User.hash_password(random_password()),
     )
     user_repo.create(user)
 
@@ -84,12 +85,14 @@ def test_default_role_and_admin_helpers(session: Session) -> None:
     assert {role.name for role in roles} == {
         "admin", "project_manager", "analyst", "viewer"}
 
+    admin_password = random_password()
+
     ensure_admin_user(
         user_repo,
         role_repo,
         email="admin@example.com",
         username="admin",
-        password="SecurePass1!",
+        password=admin_password,
     )
 
     admin = user_repo.get_by_email("admin@example.com", with_roles=True)
@@ -103,7 +106,7 @@ def test_default_role_and_admin_helpers(session: Session) -> None:
         role_repo,
         email="admin@example.com",
         username="admin",
-        password="SecurePass1!",
+        password=admin_password,
     )
     admin_again = user_repo.get_by_email("admin@example.com", with_roles=True)
     assert admin_again is not None
@@ -125,7 +128,7 @@ def test_unit_of_work_exposes_auth_repositories(engine) -> None:
         uow.ensure_admin_user(
             email="uow-admin@example.com",
             username="uow-admin",
-            password="AnotherSecret1!",
+            password=random_password(),
         )
 
         admin = uow.users.get_by_email(