Feat/v06 history export

[gcharest]

This pull request introduces major improvements to the PWA app features including meal history export/import, tags and user management. Additional end-to-end (E2E) and smoke testing workflows, enhances accessibility test reliability, and updates documentation with new feature planning. The most significant changes include a new sharded E2E test strategy for faster CI, a unified smoke test job for PRs, robust handling of update dialogs in accessibility tests, and planning for a detailed meal history view and editing. There are also updates to PWA installation tests to make them more robust and environment-agnostic.

CI/CD Workflow Improvements:

• Introduced sharded E2E testing on the main branch for 4x speedup, with a new e2e-sharded job and report merging, and separated nightly/multi-browser tests into e2e-multi-browser for comprehensive coverage. [1] [2] [3] [4]
• Replaced the previous accessibility-only PR job with a unified e2e-smoke job that runs both accessibility and installation smoke tests for faster, more relevant feedback on pull requests. [1] [2]

Accessibility and E2E Test Reliability:

• Added a helper (dismissUpdateDialogs) to the accessibility tests to programmatically hide update dialogs and notifications, reducing flakiness from overlays interfering with automated checks. [1] [2] [3] [4] [5]
• Improved PWA installation tests to dynamically resolve the manifest URL, allow for environment-specific manifest paths, and updated assertions to match new theme colors and icon requirements. Also improved service worker registration detection and made it CI-specific for stability. [1] [2] [3] [4] [5] [6] [7]

Documentation and Feature Planning:

• Marked all history export/import success criteria as complete and added a detailed plan for a new meal history detail view and editing functionality, including a phased implementation approach and risk analysis. [1] [2]

These changes collectively make the CI pipeline faster and more reliable, improve the robustness of E2E and accessibility tests, and lay the groundwork for significant new user-facing features.