MSXMD Toolkit 1.0.0

Initial release. Includes opt-in login branding, admin design, hardening, performance controls, maintenance tools and add-on support. All features start disabled. Install the attached msxmd-toolkit.zip through WordPress Plugins. Verified activation and 40 local integration checks on WordPress 7.1 / PHP 8.3.33 using Playground SQLite. Browser visual checks, multisite, minimum-version and MySQL coverage remain unverified. SHA-256 checksum attached.