Add knowledge graph with entity extraction#67
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Add StudyPlannerService with upcoming reviews, daily plan, exam dates, study streak heatmap, and iCal export. Includes migration for the study_set_exam_dates table. Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
Implements AI-powered entity extraction and relationship mapping from study materials. Entities (concepts, people, dates, formulas, definitions, events) are extracted via LLM prompts and stored in knowledge_entities/knowledge_relationships tables. Supports cross-study-set graph merging with entity deduplication. Closes #56 Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
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Summary
knowledge-graphmodule with AI-powered entity extraction from study set content (flashcards, notes, descriptions)knowledge_entitiesandknowledge_relationshipstables on startupEndpoints
POST /knowledge-graph/:studySetId/extract— trigger extractionGET /knowledge-graph/:studySetId— get graph (nodes + edges)GET /knowledge-graph/:studySetId/entities— list entitiesGET /knowledge-graph/entity/:id— entity detail with relationshipsPOST /knowledge-graph/merge— merge graphs across study setsTest plan
tsc --noEmitpasses with 0 errorsGET /knowledge-graph/:idreturns correct nodes and edgesCloses #56
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