fix: use Fedify 2.0 replyTarget for reply threading

Fedify 2.0 renamed the Note/Article constructor parameter from
inReplyTo to replyTarget. The old name was silently ignored,
causing replies to appear as standalone posts on the fediverse.

lib/controllers/compose.js

@@ -208,7 +208,7 @@ export function submitComposeController(mountPath, plugin) {
           id: new URL(noteId),
           attribution: actorUri,
           content: content.trim(),
-          inReplyTo: inReplyTo ? new URL(inReplyTo) : undefined,
+          replyTarget: inReplyTo ? new URL(inReplyTo) : undefined,
           published: Temporal.Now.instant(),
           to: publicAddress,
           cc: followersUri,

lib/jf2-to-as2.js

@@ -215,7 +215,7 @@ export function jf2ToAS2Activity(properties, actorUrl, publicationUrl, options =
   }
 
   if (properties["in-reply-to"]) {
-    noteOptions.inReplyTo = new URL(properties["in-reply-to"]);
+    noteOptions.replyTarget = new URL(properties["in-reply-to"]);
   }
 
   // Attachments

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@rmdes/indiekit-endpoint-activitypub",
-  "version": "2.0.4",
+  "version": "2.0.5",
   "description": "ActivityPub federation endpoint for Indiekit via Fedify. Adds full fediverse support: actor, inbox, outbox, followers, following, syndication, and Mastodon migration.",
   "keywords": [
     "indiekit",