Docs update

Author: VoxHash

CHANGELOG.md

@@ -0,0 +1,7 @@
+# Changelog
+
+All notable changes to this SDK are documented in this file.
+
+## 2026-04-06
+
+- Added repository-level `ROADMAP.md` and `CHANGELOG.md` for workspace doc-gap conformance.

ROADMAP.md

@@ -0,0 +1,13 @@
+# LicenseChain Ruby SDK Roadmap
+
+## Current Focus
+
+- Keep default API base aligned with `https://api.licensechain.app/v1`.
+- Maintain `verify_with_details` and JWT/JWKS helper compatibility.
+- Preserve contract parity for verification responses and license assertions.
+
+## Next Operational Tasks
+
+- Re-run conformance after Core API contract updates.
+- Keep docs links and examples synchronized with canonical docs.
+- Record release-impacting changes in `CHANGELOG.md`.