fix: use getTags() async iterator and instanceof checks for Mention/Hashtag

lib/inbox-listeners.js

@@ -14,7 +14,9 @@ import {
   Create,
   Delete,
   Follow,
+  Hashtag,
   Like,
+  Mention,
   Move,
   Note,
   Reject,
@@ -450,8 +452,7 @@ export function registerInboxListeners(inboxChain, options) {
       }
 
       // Check for mentions of our actor
-      if (object.tag) {
+      {
-        const tags = Array.isArray(object.tag) ? object.tag : [object.tag];
         const ourActorUrl = ctx.getActorUri(handle).href;
 
         // Detect direct/private visibility: no public collection in `to` or `cc`
@@ -462,8 +463,8 @@ export function registerInboxListeners(inboxChain, options) {
           !toHrefs.includes(PUBLIC_COLLECTION) &&
           !ccHrefs.includes(PUBLIC_COLLECTION);
 
-        for (const tag of tags) {
+        for await (const tag of object.getTags()) {
-          if (tag.type === "Mention" && tag.href?.href === ourActorUrl) {
+          if (tag instanceof Mention && tag.href?.href === ourActorUrl) {
             const actorInfo = await extractActorInfo(actorObj, { documentLoader: authLoader });
             const rawMentionHtml = object.content?.toString() || "";
             const mentionHtml = sanitizeContent(rawMentionHtml);
@@ -525,10 +526,12 @@ export function registerInboxListeners(inboxChain, options) {
         // Not a followed account — check if the post's hashtags match any followed tags
         // so tagged posts from across the fediverse appear in the timeline
         try {
-          const objectTags = Array.isArray(object.tag) ? object.tag : (object.tag ? [object.tag] : []);
+          const postHashtags = [];
-          const postHashtags = objectTags
+          for await (const t of object.getTags()) {
-            .filter((t) => t.type === "Hashtag" && t.name)
+            if (t instanceof Hashtag && t.name) {
-            .map((t) => t.name.toString().replace(/^#/, "").toLowerCase());
+              postHashtags.push(t.name.toString().replace(/^#/, "").toLowerCase());
+            }
+          }
 
           if (postHashtags.length > 0) {
             const followedTags = await getFollowedTags(collections);