feat: highlight search keywords on reader page with auto-scroll to first match

fix: PWA status bar & theming — black-translucent + dark bg match

fix: merge adjacent <B> headings with <I> footnote refs, fix marker normalization exclusion list

feat: migrate jina v5, refine AI popup, add reference popup UI

feat: first-page reader layout (centered homage, split volume title) + clean section range markers

feat: markdown rendering for AI responses

fix: Thai/Pali typography — center-aligned, proper paragraph structure

Deploy React+FastAPI webapp to HF Space