v0.1.0-beta.6

Companion to @utexo/rgb-lightning-node-bare@v0.1.0-beta.10.

Wraps the new rln_sdk_node_vss_clear_fence C-FFI symbol (already in beta.5) as a JS-callable napi method. The .node native artifact is rebuilt; index.js / index.d.ts gain the new method signature.