[M8-T05] Configure Playwright in CI

## Task: M8-T05

**Milestone:** M8 - Playwright Tests (1 day)
**Feature:** RuleZ UI

## Description

Add Playwright tests to CI workflow.

## Acceptance Criteria

- [ ] Add Playwright to CI workflow
- [ ] Configure test artifacts
- [ ] Generate test reports

## Dependencies

- Depends on: M8-T01, M1-T03