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openspec/changes/p17-regression-defects/specs/playwright-ui-ux-regression-suite/spec.md

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+## ADDED Requirements
+
+### Requirement: Playwright regression suite covers core UI/UX capabilities
+The system SHALL provide a Playwright-based regression suite that validates critical UI and UX behavior across all shipped user-facing capabilities.
+
+#### Scenario: Capability-mapped suite execution
+- **WHEN** regression tests are executed
+- **THEN** test cases are organized and traceable to capability-level requirements
+- **AND** failures identify the impacted capability and user journey
+
+### Requirement: Regression suite validates themes, states, and breakpoints
+The system SHALL validate key controls and content for light, dark, and contrast themes, across mobile, tablet, and desktop breakpoints, including interactive states.
+
+#### Scenario: Theme and breakpoint matrix coverage
+- **WHEN** the suite runs in full profile
+- **THEN** high-priority journeys execute across all supported themes and target viewport classes
+- **AND** assertions include default, hover, focus-visible, active, and visited states where applicable
+
+### Requirement: Regression failures produce actionable diagnostics
+The system SHALL emit debugging artifacts for failed browser tests.
+
+#### Scenario: Failure artifact collection
+- **WHEN** a Playwright test fails
+- **THEN** the run stores trace and screenshot evidence
+- **AND** artifacts are linked in CI output for triage