E2E foundation, contracts, and CI

[patchmemory]

Title: E2E foundation, contracts, and CI

Summary

• Implements Playwright E2E scaffold with smoke + core flow specs (browse, scan)
• Adds minimal API contracts for /api/scan, /api/scans//status, /api/directories
• Aligns Dev CLI timestamps to timezone-aware ISO8601
• Adds stable data-testid hooks to UI templates
• Wires CI for pytest and strict E2E smoke
• Updates docs/testing.md with quickstarts and CI notes

Related

• Story: story:e2e-testing
• Phase: 02–03
• Task(s):
  • task:e2e:02-playwright-scaffold (Done)
  • task:e2e:03-core-flows (partially addressed by initial specs; remaining flows in next branch)

Local verification

• Python tests: python -m pytest -q → green
• Playwright E2E: npm install && npx playwright install --with-deps && npm run e2e → green

CI

• GitHub Actions workflow runs:
  • Python tests (3.11)
  • E2E smoke (Node 18) — strict, SCIDK_PROVIDERS=local_fs

How to run locally

• API contracts: python -m pytest tests/contracts/test_api_contracts.py -q
• E2E: npm run e2e (uses e2e/global-setup.ts to boot the Flask server)

Risk assessment

• Low risk. Mostly additive tests/config/docs. UI changes limited to data-testid attributes.

Merge checklist

• pytest green locally
• E2E green locally
• CI expected to pass (strict E2E)
• task:e2e:02-playwright-scaffold marked Done with completed_at
• Reviewer sanity pass on docs/testing.md and CI workflow

Post-merge (follow-up branch)

• Expand Phase 03 core flows E2E and refine contracts as needed.