feat: Enhance end-to-end testing framework with improved server setup and UI validation

tests/e2e/test_scenarios.py

@@ -9,7 +9,7 @@ def test_scenario_form_loads(page: Page):
     expect(page).to_have_url(
         "http://localhost:8001/ui/scenarios"
     )  # Updated port
-    expect(page.locator("h2:has-text('Create New Scenario')")).to_be_visible()
+    expect(page.locator("h2:has-text('Create a New Scenario')")).to_be_visible()
 
 
 def test_create_new_scenario(page: Page):
@@ -20,7 +20,7 @@ def test_create_new_scenario(page: Page):
     scenario_desc = "A scenario created during an end-to-end test."
 
     page.fill("input[name='name']", scenario_name)
-    page.fill("textarea[name='description']", scenario_desc)
+    page.fill("input[name='description']", scenario_desc)
 
     # Expect a network response from the POST request after clicking the submit button.
     with page.expect_response("**/api/scenarios/") as response_info: