chore: sync from fn-registry agent

.ipython/profile_default/startup/00_fn_registry.py

@@ -0,0 +1,100 @@
+"""
+fn_registry kernel startup
+Autoconfigura acceso al registry en cada notebook.
+Generado por write_jupyter_registry_kernel (fn_registry).
+"""
+import os
+import sys
+import sqlite3
+from pathlib import Path
+
+# ── FN_REGISTRY_ROOT ────────────────────────────────────────
+# Prioridad: env var > path hardcoded > descubrimiento automatico
+def _discover_registry_root():
+    if os.environ.get("FN_REGISTRY_ROOT"):
+        return Path(os.environ["FN_REGISTRY_ROOT"]).resolve()
+    hardcoded = Path("/home/lucas/fn_registry")
+    if (hardcoded / "registry.db").exists():
+        return hardcoded
+    # Subir desde CWD hasta encontrar registry.db
+    p = Path.cwd()
+    for _ in range(10):
+        if (p / "registry.db").exists():
+            return p
+        if p.parent == p:
+            break
+        p = p.parent
+    return hardcoded
+
+FN_REGISTRY_ROOT = _discover_registry_root()
+os.environ["FN_REGISTRY_ROOT"] = str(FN_REGISTRY_ROOT)
+
+# ── sys.path: importar funciones Python del registry ────────
+_python_functions = FN_REGISTRY_ROOT / "python" / "functions"
+for _domain in sorted(_python_functions.iterdir()) if _python_functions.exists() else []:
+    if _domain.is_dir() and not _domain.name.startswith("_"):
+        _path = str(_domain)
+        if _path not in sys.path:
+            sys.path.insert(0, _path)
+
+# Tambien el directorio padre para imports por dominio: from core import filter_list
+_pf = str(_python_functions)
+if _pf not in sys.path:
+    sys.path.insert(0, _pf)
+
+# ── fn_query: consultar registry.db desde el notebook ───────
+_REGISTRY_DB = FN_REGISTRY_ROOT / "registry.db"
+
+def fn_query(sql, params=()):
+    """Ejecuta una consulta SQL sobre registry.db y retorna las filas.
+
+    Ejemplos:
+        fn_query("SELECT id, description FROM functions WHERE domain = ?", ("finance",))
+        fn_query("SELECT id FROM functions_fts WHERE functions_fts MATCH ?", ("slice*",))
+    """
+    if not _REGISTRY_DB.exists():
+        raise FileNotFoundError(f"registry.db no encontrado en {_REGISTRY_DB}")
+    con = sqlite3.connect(str(_REGISTRY_DB))
+    con.row_factory = sqlite3.Row
+    try:
+        rows = con.execute(sql, params).fetchall()
+        return [dict(r) for r in rows]
+    finally:
+        con.close()
+
+def fn_search(term):
+    """Busca funciones y tipos en el registry por nombre o descripcion.
+
+    Ejemplo:
+        fn_search("slice")
+        fn_search("finance")
+    """
+    fts_term = f"name:{term}* OR description:{term}*"
+    functions = fn_query(
+        "SELECT id, kind, purity, lang, description FROM functions "
+        "WHERE id IN (SELECT id FROM functions_fts WHERE functions_fts MATCH ?) "
+        "ORDER BY name", (fts_term,)
+    )
+    types = fn_query(
+        "SELECT id, algebraic, lang, description FROM types "
+        "WHERE id IN (SELECT id FROM types_fts WHERE types_fts MATCH ?) "
+        "ORDER BY name", (fts_term,)
+    )
+    return {"functions": functions, "types": types}
+
+def fn_code(function_id):
+    """Retorna el codigo fuente de una funcion del registry.
+
+    Ejemplo:
+        print(fn_code("filter_list_py_core"))
+    """
+    rows = fn_query("SELECT code FROM functions WHERE id = ?", (function_id,))
+    if not rows:
+        raise KeyError(f"Funcion no encontrada: {function_id}")
+    return rows[0]["code"]
+
+# ── Mensaje de bienvenida ───────────────────────────────────
+print(f"fn_registry conectado: {FN_REGISTRY_ROOT}")
+print(f"  registry.db: {'OK' if _REGISTRY_DB.exists() else 'NO ENCONTRADO'}")
+print(f"  Python functions: {_pf}")
+print(f"  Helpers: fn_query(), fn_search(), fn_code()")