refactor: share dock config adapter helper scaffolding

src/plugin-sdk/nostr.ts

@@ -17,3 +17,4 @@ export {
   createDefaultChannelRuntimeState,
 } from "./status-helpers.js";
 export { createFixedWindowRateLimiter } from "./webhook-memory-guards.js";
+export { mapAllowFromEntries } from "./channel-config-helpers.js";