Unify and improve layout settling logic across EPUB, HTML, and PDF viewers by
adding delayed recomputation and guarding against zero-height container during
transient states. Refactor PDF document loading to include retry logic with
success detection, ensuring robust handling of transient failures. Update
Playwright test helpers to provide more reliable PDF viewer readiness checks
and introduce request retry utilities for backend API calls. Add targeted unit
tests for single-section chapter fallback in the PDF audiobook adapter. Update
test files and helpers to align with new layout and export logic.
- Isolate concurrent LibreOffice runs with per-job profile directories
(soffice -env:UserInstallation) and per-job temp folders
- Poll for generated PDF and verify stable file size before reading
- Consolidate temp artifacts under docstore/tmp and clean up via rm -r
- Add headless/nologo flags and improve error handling
ui(accessibility):
- ConfirmDialog exposes proper dialog roles
- DocumentFolder toggle adds type, aria-expanded, aria-controls, and title;
associate content panel with an id
- HTMLViewer wraps content in .html-container for HTML/TXT views
test: add comprehensive Playwright specs and helpers
- Accessibility, API health, deletion flows, folders, navigation, playback,
and upload scenarios
- Add sample.md and unsupported.xyz; update sample.pdf; extend helpers
ci: run Playwright workflow on version1.0.0 branch
