fix: extract correct username from /users/name URL pattern

The attributionIds fallback was matching "users" from /users/NatalieDavis
instead of the actual username. Now handles /@name, /users/name, and
/ap/users/id patterns correctly.

lib/timeline-store.js

@@ -155,10 +155,19 @@ export async function extractObjectData(object, options = {}) {
     const attrIds = object.attributionIds;
     if (attrIds && attrIds.length > 0) {
       const authorUrl = attrIds[0].href;
-      const authorHostname = new URL(authorUrl).hostname;
-      // Extract username from URL pattern like /users/name or /@name
-      const pathMatch = new URL(authorUrl).pathname.match(/\/@?([^/]+)/);
-      const username = pathMatch ? pathMatch[1] : "";
+      const parsedUrl = new URL(authorUrl);
+      const authorHostname = parsedUrl.hostname;
+      // Extract username from common URL patterns:
+      //   /@username, /users/username, /ap/users/12345/
+      const pathname = parsedUrl.pathname;
+      let username = "";
+      const atPattern = pathname.match(/\/@([^/]+)/);
+      const usersPattern = pathname.match(/\/users\/([^/]+)/);
+      if (atPattern) {
+        username = atPattern[1];
+      } else if (usersPattern) {
+        username = usersPattern[1];
+      }
       author = {
         name: username || authorHostname,
         url: authorUrl,

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@rmdes/indiekit-endpoint-activitypub",
-  "version": "1.1.6",
+  "version": "1.1.7",
   "description": "ActivityPub federation endpoint for Indiekit via Fedify. Adds full fediverse support: actor, inbox, outbox, followers, following, syndication, and Mastodon migration.",
   "keywords": [
     "indiekit",