add delta client

clients/fabric/jars/DeltaClient.jar

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:df814bbddf43b30cde63c3b4e9f2a6a7a9438639f5a069e7c31f85eddd8d3235
+size 9101080

static/fabric-clients.json

@@ -1,4 +1,41 @@
 [
+  {
+    "client_type": "fabric",
+    "created_at": "2026-08-12T17:08:42.110298+00:00",
+    "downloads": 0,
+    "filename": "fabric/DeltaClient.jar",
+    "id": 116,
+    "launches": 0,
+    "main_class": "net.fabricmc.loader.launch.knot.KnotClient",
+    "md5_hash": "880b6695f0d489b024f3699a1db2ec9c",
+    "name": "DeltaClient",
+    "show": true,
+    "size": 9,
+    "version": "1.21.4",
+    "working": true,
+    "dependencies": [
+      {
+        "md5_hash": "128a8d042180e7c92567342e21a21a6d",
+        "name": "fabric-api-0.119.4+1.21.4",
+        "size": 2
+      },
+      {
+        "md5_hash": "0f8e922606f64c422cafafc0ad887c0e",
+        "name": "baritone-api-fabric-1.13.1",
+        "size": 2
+      },
+      {
+        "md5_hash": "56cc7fc0294adc92cbbefe6f456d8f68",
+        "name": "baritone-standalone-fabric-1.13.1",
+        "size": 1
+      },
+      {
+        "md5_hash": "015e00b79c6ae76881373d367b88a565",
+        "name": "baritone-unoptimized-fabric-1.13.1",
+        "size": 2
+      }
+    ]
+  },
   {
     "client_type": "fabric",
     "created_at": "2026-08-04T04:26:21.398436+00:00",