chore(license): re-license to dual MIT (core) + BSL 1.1 (stealth)

Squashed from chore/license-relicense. Full message preserved in the
original branch commit bb77eb5. See ADR-0002 for the decision rationale.

Refs: ADR-0002, commit bb77eb5

lazy_load.py

@@ -1,3 +1,9 @@
+# SPDX-License-Identifier: BSL-1.1
+# Copyright (c) 2026 Rug Munch Media LLC
+#
+# Part of Pry — Stealth / Anti-Detection Module
+# Licensed under Business Source License 1.1 — see LICENSE-BSL-STEALTH.
+# Change Date: 2029-01-01 (converts to MIT).
 """Pry — lazy load and infinite scroll handling."""
 
 import logging