Phase 3: Appointment model & booking API with timezone fix

backend/tests/conftest.py

@@ -149,7 +149,8 @@ async def regular_user(client_factory):
     password = "password123"
     
     async with client_factory.get_db_session() as db:
-        await create_user_with_roles(db, email, password, [ROLE_REGULAR])
+        user = await create_user_with_roles(db, email, password, [ROLE_REGULAR])
+        user_id = user.id
     
     # Login to get cookies
     response = await client_factory.post(
@@ -162,6 +163,32 @@ async def regular_user(client_factory):
         "password": password,
         "cookies": dict(response.cookies),
         "response": response,
+        "user": {"id": user_id, "email": email},
+    }
+
+
+@pytest.fixture(scope="function")
+async def alt_regular_user(client_factory):
+    """Create a second regular user for tests needing multiple users."""
+    email = unique_email("alt_regular")
+    password = "password123"
+    
+    async with client_factory.get_db_session() as db:
+        user = await create_user_with_roles(db, email, password, [ROLE_REGULAR])
+        user_id = user.id
+    
+    # Login to get cookies
+    response = await client_factory.post(
+        "/api/auth/login",
+        json={"email": email, "password": password},
+    )
+    
+    return {
+        "email": email,
+        "password": password,
+        "cookies": dict(response.cookies),
+        "response": response,
+        "user": {"id": user_id, "email": email},
     }