Add 2.1.0.0 release entry to manifest.json

Also fixes the plugin guid, which never matched Plugin.cs/build.yaml
(d02b875a... vs the real 18c2a8ea...), breaking repo-based update
detection for installed instances.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

manifest.json

@@ -1,12 +1,20 @@
 [
     {
-        "guid": "d02b875a-2a61-4d74-ae5f-394eca192f74",
+        "guid": "18c2a8ea-afa0-4a0b-aa94-072b492ab80b",
         "name": "AnilistSync",
         "description": "This plugin will scrobble anime to Anilist for you",
         "overview": "Scrobble to Anilist",
-        "owner": "ARufenach, modified by Fallenbagel",
+        "owner": "ARufenach, modified by Fallenbagel, YannikMG",
         "category": "General",
         "versions": [
+            {
+                "version": "2.1.0.0",
+                "changelog": "Ported to Jellyfin 10.11 (net9.0, IHostedService). Fixed a broken authorization policy that 500'd every plugin API call. Verified live against 10.11.11 with a real scrobble.",
+                "targetAbi": "10.11.0.0",
+                "sourceUrl": "https://git.umarumg.de/UmaruMG/AnilistSync/releases/download/v2.1.0.0/AnilistSync_2.1.0.0.zip",
+                "checksum": "81fe39003de5362fbe204bc01ba19f7f",
+                "timestamp": "2026-07-31T23:23:33Z"
+            },
             {
                 "version": "2.0.0",
                 "changelog": "Add support for Jellyfin 10.8",