refactor: update DimEstudiante schema by removing personal demographics and adding age, occupation, and marital status

database.py

@@ -56,12 +56,11 @@ class DimEstudiante(Base):
     nombre_completo   = Column(String(200), nullable=False)
     codigo_estudiante = Column(String(50))
     genero            = Column(String(20))
-    fecha_nacimiento  = Column(DateTime)
-    pais              = Column(String(100))
     ciudad            = Column(String(100))
     nivel_academico   = Column(String(100))
-    carrera           = Column(String(200))
-    institucion_origen= Column(String(200))
+    edad              = Column(Integer)
+    ocupacion         = Column(String(100))
+    estado_civil      = Column(String(50))
 
 
 class DimDocente(Base):