feat: funciones Python para core, cybersecurity, datascience y finance

Agrega funciones Python reutilizables organizadas por dominio:
- core: composicion funcional (pipe, compose, map, filter, reduce, etc.)
- cybersecurity: analisis de amenazas y puertos
- datascience: estadisticas y deteccion de outliers
- finance: indicadores tecnicos y analisis financiero

python/functions/cybersecurity/__init__.py

@@ -0,0 +1,25 @@
+from .cybersecurity import (
+    hash_sha256,
+    hash_md5,
+    entropy_shannon,
+    detect_sql_injection,
+    extract_urls,
+    is_base64,
+    is_hex,
+    levenshtein_distance,
+    jaccard_similarity,
+    normalize_url,
+)
+
+__all__ = [
+    "hash_sha256",
+    "hash_md5",
+    "entropy_shannon",
+    "detect_sql_injection",
+    "extract_urls",
+    "is_base64",
+    "is_hex",
+    "levenshtein_distance",
+    "jaccard_similarity",
+    "normalize_url",
+]