Add activity rendering and direct PDF raster extraction#20
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nicpottier merged 5 commits intomainfrom Feb 12, 2026
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…jects Activity rendering: - Add Liquid prompt templates for 7 activity types with answer variants - Extend config with activity render strategies and per-section model resolution - Add HTML validation support for activity-generated IDs - Update web-rendering types for activity sections PDF raster extraction: - Replace SVG-based raster image extraction with direct PDF object extraction - Recurse into Form XObjects to find nested images - Handle CMYK JPEG color conversion via mupdf - Deduplicate images by PDF object number - Support JPEG format throughout storage and API layers
OpenAI structured outputs don't support z.record() (additionalProperties).
Change activityAnswersLLMSchema from record to array of {id, value} objects,
and convert back to record in render-llm.ts for storage. Update all answer
prompt templates to show the new array format.
…e prompt - Handle .jpeg extension (not just .jpg) in image serving route - Add superRefine validation: answer_prompt only allowed for activity render type - Fix true/false prompt: radio values use "true"/"false", shared data-activity-item per question
Resolve conflicts in config.ts (BookFormat/LayoutType from main + activity RenderType from branch) and books.ts (new routes from main + updated image serving from branch). Fix books.test.ts to use new buffer/format image fields.
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Summary
z.record()to array of{id, value}for OpenAI structured output compatibility; add config validation foranswer_promptonly on activity render typesTest plan
pnpm test)pnpm typecheck)