fix(discord): cast channel type for default_auto_archive_duration access

tzy-17 · claude · tzy-17 · commit 0e7cbe9fb8ee · 2026-07-10T02:35:52.000+08:00
The APIChannel union type does not expose default_auto_archive_duration
on all members. Since we already verified the channel is forum/GuildMedia
before reading this field, use a safe structural cast to access it.

Co-Authored-By: Claude Opus 4.7 &lt;noreply@anthropic.com&gt;
diff --git a/extensions/discord/src/send.messages.ts b/extensions/discord/src/send.messages.ts
@@ -175,7 +175,8 @@ export async function createThreadDiscord(
     // Discord applies its API default (4320 / 3 days), ignoring the forum's
     // configured default and causing threads to linger longer than intended.
     if (!payload.autoArchiveMinutes && isForumLike) {
-      const forumDefault = channel?.default_auto_archive_duration;
+      const forumDefault = (channel as { default_auto_archive_duration?: number } | undefined)
+        ?.default_auto_archive_duration;
       if (typeof forumDefault === "number") {
         body.auto_archive_duration = forumDefault;
       }
