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/datascience/clip.md

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+---
+name: clip
+kind: function
+lang: py
+domain: datascience
+version: "1.0.0"
+purity: pure
+signature: "def clip(data: list, lo: float, hi: float) -> list"
+description: "Recorta los valores de la lista al rango [lo, hi]."
+tags: [clipping, bounds, python]
+uses_functions: []
+uses_types: []
+returns: []
+returns_optional: false
+error_type: ""
+imports: []
+tested: false
+tests: []
+test_file_path: ""
+file_path: "python/functions/datascience/datascience.py"
+---
+
+## Ejemplo
+
+```python
+clip([1, 5, 10, -3], 0, 7)
+# [1, 5, 7, 0]
+```
+
+## Notas
+
+Funcion pura sin dependencias. Equivalente a numpy.clip pero sin numpy.