refactor: share config adapter allowFrom and defaultTo helpers

extensions/nextcloud-talk/src/channel.ts

@@ -2,6 +2,7 @@ import {
   buildAccountScopedDmSecurityPolicy,
   collectOpenGroupPolicyRouteAllowlistWarnings,
   formatAllowFromLowercase,
+  mapAllowFromEntries,
 } from "openclaw/plugin-sdk";
 import {
   applyAccountNameToChannelSection,
@@ -109,9 +110,9 @@ export const nextcloudTalkPlugin: ChannelPlugin<ResolvedNextcloudTalkAccount> =
       baseUrl: account.baseUrl ? "[set]" : "[missing]",
     }),
     resolveAllowFrom: ({ cfg, accountId }) =>
-      (
-        resolveNextcloudTalkAccount({ cfg: cfg as CoreConfig, accountId }).config.allowFrom ?? []
-      ).map((entry) => String(entry).toLowerCase()),
+      mapAllowFromEntries(
+        resolveNextcloudTalkAccount({ cfg: cfg as CoreConfig, accountId }).config.allowFrom,
+      ).map((entry) => entry.toLowerCase()),
     formatAllowFrom: ({ allowFrom }) =>
       formatAllowFromLowercase({
         allowFrom,