V3 fix document delete issue

tests/conftest.py

@@ -41,6 +41,7 @@ async def default_settings():
     """Provide default settings for tests."""
     settings = get_settings(database_url="sqlite:///:memory:")
     db_url = get_database_url(settings)
+    await dispose_session_factory(db_url)
     engine = get_engine(database_url=db_url)
 
     # Cached in-memory engines persist across tests; reset schema per test for isolation.

tests/services/test_document_service.py

@@ -114,6 +114,39 @@ async def test_delete_document_succeeds_when_unlinked(default_session_factory, t
         await service.read_document_detail(document.id)
 
 
+@pytest.mark.asyncio
+async def test_delete_document_removes_person_links(default_session_factory, tmp_path):
+    service = DocumentService(session_factory=default_session_factory)
+    service.settings.upload_dir = tmp_path
+
+    document = await service.create_document(
+        Document(
+            id=uuid4(),
+            name="person-linked-delete",
+            document_type="memo",
+        )
+    )
+    person = await service.create_person(Person(full_name="Linked Person"))
+    await service.create_document_person(
+        DocumentPerson(
+            document_id=document.id,
+            person_id=person.id,
+            role=DocumentPersonRole.AUTHOR,
+        )
+    )
+
+    document_dir = service.settings.upload_dir / "documents" / str(document.id)
+    document_dir.mkdir(parents=True, exist_ok=True)
+
+    await service.delete_document(document)
+
+    assert not document_dir.exists()
+    assert await service.list_document_people(document_id=document.id) == []
+
+    with pytest.raises(DocumentError):
+        await service.read_document_detail(document.id)
+
+
 @pytest.mark.asyncio
 async def test_delete_document_removes_populated_storage_tree(default_session_factory, tmp_path):
     service = DocumentService(session_factory=default_session_factory)