feat: goal_relevance, priority_score dampening, recommendation labels (T-16, D-02, D-03)

Wire context_block: upload UI + llm.py injection + doc updates

feat(clusterer): T-09 replace KMeans with BERTopic + HDBSCAN

Add jtbd_confidence signal, solution count validation, and fix doc discrepancies

Add job_type classification to JTBD output (functional/emotional/social)

Merge pull request #13 from Lookus22/fix/source-type-diversity-denominator

fix: expand source_type enum from 4 to 6 values per May 13 decision

Add OST structural validation and fix stale data contract doc

docs(data_contracts): document fixed denominator for source_type_diversity

feat: three-score scoring system, llm.py implementation, source_map module

feat: initial repo — pipeline, data contracts, LLM schema, system prompt, pages