readme: add Disclosure section linking to company-level practices

Author: Alex

README.md

@@ -152,6 +152,12 @@ Tier 3 activates automatically when the [`ruby_llm`](https://github.com/crmne/ru
 - Ruby >= 3.2
 - Zero runtime dependencies (stdlib only: `json`, `net/http`, `fileutils`)
 
+## Disclosure
+
+Built with substantial AI assistance under human direction. See
+[Sorcerous Machine — Practices](https://sorcerousmachine.com/about#practices)
+for the full disclosure on AI usage and commit attribution.
+
 ## License
 
 MIT. See [LICENSE.txt](LICENSE.txt).