* feat: Define RzToastProvider implementation specification

Outlines the complete specification for the new RizzyUI toast system.

This document details:
- Replacing the `simple-notify` dependency with a native RizzyUI solution.
- The design of the SSR `RzToastProvider` component.
- Enhancements to the public JavaScript API, including update, dismiss, and loading states.
- Server-side styling through a class map builder and theme integration.
- Accessibility, eventing, deduplication, and security requirements.
- Comprehensive testing and documentation guidelines for the feature.

* feat: Add RzToastProvider server foundation (#161)

* feat: added rzToast manager scripts

* test: added rzToast tests

* feat: finish up toast implementation

* chore: updated assets

* docs: Revise RzToastProvider docs with live demos (#162)

* fix: Fix toast provider class composition and status styling (#163)

* Fix toast provider class composition and status styling

* Ensure error toast styling wins over defaults

* Match default toast styling to accent alert

* Refine toast default styling and examples

* Animate toast entry and stack reflow

* feat: regenerated static assets

* chore: bump version number

* chore: added toast service library

* feat: Replace legacy toast service with RzToast API (#164)

* chore: update build assets