feat(eda): capítulo RELACIONES para AutomaticEDA
Añade el capítulo `relaciones` al motor AutomaticEDA: analiza las relaciones de clave de la tabla/base y se coloca tras `correlacion`, antes de `modelos`, en CHAPTER_ORDER. Capas que renderiza (solo las que aplican; None si no hay nada que decir): - Claves declaradas: PK/FK/UNIQUE reales del esquema DuckDB, vía la nueva función `detect_declared_keys_duckdb` (lee `duckdb_constraints()`). - Candidatos a clave primaria: los `key_candidates` del TableProfile. - FK candidatas inter-tabla: reusa `infer_fk_containment_duckdb` (containment + señal de nombre) y `build_join_graph` (roles de nodos + diagrama Mermaid pegable). Solo si la fuente DuckDB tiene varias tablas. - FK candidatas intra-tabla: heurística nombre + cardinalidad, vía la nueva función pura `suggest_intratable_fk_candidates`, marcada como sugerencia. Engancha al glosario clicable los términos PK, FK, containment/inclusión y cardinalidad (contrato §11.1) y usa Group (keep-together) para el grafo. Funciones nuevas del registry (grupo `eda`): - detect_declared_keys_duckdb (impure, datascience) + test. - suggest_intratable_fk_candidates (pure, datascience) + test. Tests: relaciones_test.py (golden intra + inter, edges, no-cut render) + los tests de ambas funciones. Suite automatic_eda + render_automatic_eda verde (89 passed). Golden end-to-end con el pipeline render_automatic_eda verificado sobre titanic (intra) y una BD customers/orders (inter). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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@@ -34,6 +34,7 @@ from .theils_u import theils_u
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from .correlation_ratio import correlation_ratio
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from .mutual_info_columns import mutual_info_columns
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from .infer_fk_containment_duckdb import infer_fk_containment_duckdb
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from .detect_declared_keys_duckdb import detect_declared_keys_duckdb
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from .build_join_graph import build_join_graph
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from .association_matrix import association_matrix
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from .correlation_matrix_duckdb import correlation_matrix_duckdb
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@@ -69,8 +70,10 @@ from .build_eda_render_ctx import build_eda_render_ctx
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from .profile_datetime import profile_datetime
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from .resample_timeseries import resample_timeseries
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from .add_pdf_internal_links import add_pdf_internal_links
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from .suggest_intratable_fk_candidates import suggest_intratable_fk_candidates
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__all__ = [
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"suggest_intratable_fk_candidates",
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"detect_time_column",
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"extract_timeseries_raw",
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"build_eda_render_ctx",
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@@ -97,6 +100,7 @@ __all__ = [
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"correlation_ratio",
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"mutual_info_columns",
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"infer_fk_containment_duckdb",
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"detect_declared_keys_duckdb",
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"build_join_graph",
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"association_matrix",
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"correlation_matrix_duckdb",
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