vizro-e2e-flow-0.1.5

Added

• Add eval framework (evals/evals.json) with 3 business-first test cases, validation scripts (validate_colors.py, validate_aggregation.py), and Playwright Python fallback for browser testing. (#1692)

Changed

• Make Step 2 (Testing) in dashboard-build non-optional, strengthen pre-aggregation guidance, and add vizro.plotly.express import warning. (#1692)