feat: funciones Python infra y tipos Python (core, datascience, infra)

Infra: cache_to_file, cache_to_sqlite, http_download_file, http_get_json,
http_post_json, read_file_with_encoding, safe_extract_zip, scan_directory,
setup_logger, normalize_zip_filenames.
Tipos: 30+ tipos core (agent_action, context, task, message, parse_result...),
6 tipos datascience (entity_candidate, extraction_result...), 2 tipos infra.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

python/functions/infra/cache_to_file_test.py

@@ -0,0 +1,54 @@
+"""Tests para cache_to_file."""
+
+import json
+import os
+import time
+
+import pytest
+
+from .cache_to_file import cache_to_file
+
+
+@pytest.fixture
+def store(tmp_path):
+    return cache_to_file(str(tmp_path))
+
+
+def test_set_y_get_basico(store):
+    store.set("hello", {"x": 42})
+    assert store.get("hello") == {"x": 42}
+
+
+def test_ttl_expirado_retorna_none(store):
+    store.set("temp", "val", ttl=0.05)
+    time.sleep(0.1)
+    assert store.get("temp") is None
+
+
+def test_archivo_meta_con_metadata_correcta(tmp_path):
+    s = cache_to_file(str(tmp_path), "ns")
+    s.set("mykey", "myval", ttl=60)
+    ns_dir = os.path.join(str(tmp_path), "ns")
+    meta_files = [f for f in os.listdir(ns_dir) if f.endswith(".meta")]
+    assert len(meta_files) == 1
+    with open(os.path.join(ns_dir, meta_files[0])) as f:
+        meta = json.load(f)
+    assert meta["original_key"] == "mykey"
+    assert meta["expires_at"] is not None
+    assert meta["created_at"] > 0
+
+
+def test_clear_elimina_directorio_del_namespace(tmp_path):
+    s = cache_to_file(str(tmp_path), "mynamespace")
+    s.set("a", 1)
+    s.set("b", 2)
+    removed = s.clear()
+    assert removed == 2
+    assert s.get("a") is None
+    assert s.get("b") is None
+
+
+def test_key_con_caracteres_especiales_hash_seguro(store):
+    key = "https://example.com/path?q=1&r=2 <special>#hash"
+    store.set(key, "safe")
+    assert store.get(key) == "safe"