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- H4: render_eda_markdown anade seccion Modelos (PCA/KMeans/normalidad/outliers); render_eda_pdf formatea models/series/caveats como tablas (no str(dict) crudo) - H9: profile_database gana flag emit_pdf -> PDF movil DB-level (resumen tablas + join graph) via render_eda_pdf_relational; clave report_pdf_path - aditivos y retrocompatibles (flags default False). 38 tests verdes Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>