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

wordpress-plugin/README.md

@@ -1,3 +1,5 @@
+[//]: # (SPDX-License-Identifier: MIT)
+[//]: # (Copyright (c) 2026 Rug Munch Media LLC)
 # Pry Monitor — WordPress Plugin
 
 Competitor price & content monitoring directly in your WordPress dashboard. Track competitors, get email alerts on changes, and sync competitor products to WooCommerce.

wordpress-plugin/pry-monitor/pry-monitor.php

@@ -1,4 +1,11 @@
 <?php
+
+<?php
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2026 Rug Munch Media LLC
+// Part of Pry - https://git.rugmunch.io/RugMunchMedia/pryscraper
+// Licensed under MIT. See LICENSE.
+
 /**
  * Plugin Name: Pry Monitor
  * Plugin URI: https://pry.dev