feat: extraccion masiva footprint_aurgi (41 funcs + 4 types + stack Docker geo)

Extrae al registry funciones del proyecto interno footprint_aurgi:
- core (6): slugify_ascii, normalize_for_join, cp_provincia_es, infer_provincia_from_cp, safe_read_csv_fallback, csv_to_parquet_duckdb
- geo puras (7): haversine_km, point_in_ring, point_in_polygon, point_in_polygons_bbox, polygon_bbox, extent_with_padding, distance_bucket
- geo I/O (4): load_geojson_polygons, load_boundary_gdf, add_basemap_osm, add_basemap_with_timeout
- valhalla client (4): valhalla_route, valhalla_isochrone, valhalla_isochrones_async, valhalla_matrix_1_to_n
- datascience stats (7): trimmed_mean, geometric_mean, detect_distribution_type, best_central_tendency, summary_stats, kde_density_levels, alpha_shape_concave_hull
- datascience fuzzy (3): fuzzy_merge_adaptive (rapidfuzz), words_to_dataset, remove_words_from_column
- datascience viz (2): plot_kde_2d, plot_heatmap_log
- infra (4): compress_pdf_ghostscript, render_table_page_pdfpages, add_header_logo, osm2pgsql_ingest
- pipelines (4): setup_geo_stack_docker, compute_centers_reachability, generate_isochrones_by_zone, count_points_per_zone
- types geo (4): LonLat, BBox, IsochroneRequest, Centro

Incluye:
- apps/footprint_geo_stack/ (PostGIS + Martin + Valhalla via docker-compose)
- 131/132 tests pasan (1 skip esperado: osm2pgsql en PATH)
- Issue tracker dev/issues/0052-footprint-aurgi-extraction.md
- Atribucion uniforme: source_repo internal:footprint_aurgi, source_license internal-aurgi
- Build con 9 agentes en paralelo (8 wave 1 + 1 wave 2 pipelines)

Tambien commitea trabajo previo no commiteado: aggregate_extraction_results, chunk_with_overlap, clean_pdf_text, merge_entity_aliases, extract_graph_gliner2, extract_relations_mrebel, extract_triples_spacy_es, gliner2/mrebel/marianmt/rebel/spacy_es load_model, parse_rebel_output, translate_es_to_en, issue 0050/0051.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

python/functions/geo/add_basemap_with_timeout.md

@@ -0,0 +1,56 @@
+---
+name: add_basemap_with_timeout
+kind: function
+lang: py
+domain: geo
+version: "1.0.0"
+purity: impure
+signature: "def add_basemap_with_timeout(ax: Axes, zoom: int = 9, cache_dir: str | Path | None = None, timeout_s: float = 15.0) -> bool"
+description: "Igual que add_basemap_osm pero con timeout SIGALRM. Retorna True si cargó el basemap, False si timeout o error. Solo Unix — en Windows retorna False inmediatamente."
+tags: [geo, visualization, basemap, osm, contextily, matplotlib, timeout]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: "error_go_core"
+imports: ["contextily", "matplotlib", "signal"]
+params:
+  - name: ax
+    desc: "matplotlib Axes con extensión proyectada en EPSG:3857."
+  - name: zoom
+    desc: "Nivel de zoom de los tiles (1-19)."
+  - name: cache_dir
+    desc: "Directorio opcional para cachear tiles."
+  - name: timeout_s
+    desc: "Segundos máximos para la descarga de tiles. Default 15.0."
+output: "True si el basemap se añadió correctamente; False en timeout, error de red, o Windows."
+tested: true
+tests:
+  - "timeout muy corto retorna False sin colgar"
+test_file_path: "python/functions/geo/tests/test_add_basemap_with_timeout.py"
+file_path: "python/functions/geo/add_basemap_with_timeout.py"
+source_repo: "internal:footprint_aurgi"
+source_license: "internal-aurgi"
+source_file: "ponderacion_isochronas/src/reporte_clientes_aurgi.py:69"
+---
+
+## Ejemplo
+
+```python
+import matplotlib
+matplotlib.use("Agg")
+import matplotlib.pyplot as plt
+from geo.add_basemap_with_timeout import add_basemap_with_timeout
+
+fig, ax = plt.subplots()
+ax.set_xlim(-430000, -350000)
+ax.set_ylim(4500000, 4600000)
+ok = add_basemap_with_timeout(ax, zoom=10, timeout_s=20.0)
+if not ok:
+    print("Basemap no disponible (sin red o timeout)")
+fig.savefig("mapa.png")
+```
+
+## Notas
+
+Limitación: usa SIGALRM que solo está disponible en Unix/Linux/macOS. En Windows retorna False inmediatamente sin intentar la descarga. El timeout usa `signal.setitimer(ITIMER_REAL, ...)` que tiene resolución de microsegundos. El handler original de SIGALRM se restaura en el bloque finally.