repko checker overview

The source-of-truth setup lives in the repository `README.md`, plus `docs/architecture.md`, `docs/providers.md`, and `docs/security.md`.

This app keeps provider secrets server-side, blocks internal indicators from external enrichment by default, and stores recent history only in the browser for the MVP.

Use the dashboard for passive IOC analysis and the URL Decoder page for quick decoding of nested or percent-encoded values.