v2.1.1

• Two-level TOC: section-based overview for large papers, flat for small, #range/toc drill-down
• Multi-ID pagination: cap combined results at budget + Remaining hint
• Grouped section headers in TOC with ✦ legend
• Citation hints: undefined keys as put() examples, first key as slug
• Bib entry splitting: multiple [@key]: on one line → separate paragraphs
• Fix put replace: match by index not path (heading changes broke matching)
• Unicode normalization in section paths