bitdynamics-ab/canton-devkit: docs/tests/e2e-test-milestone-2.md

# E2E Test Plan — Milestone 2: Web UI, Observability, DAR & Contract Tooling > **Proposal Reference:** `original-devkit-proposal.md`, Milestone 2 (Lines 249–266) > **Estimated Delivery:** Month 6 > **Total Tests:** 26 > **Platforms:** macOS (Apple Silicon), Linux (amd64), Windows (amd64) > **Prerequ