docs: rename sidebar label from Miden Guardian to Guardian

BrianSeong99 · BrianSeong99 · commit d65fb85c663d · 2026-03-06T00:45:50.000+08:00
diff --git a/docs/builder/miden-guardian/_category_.json b/docs/builder/miden-guardian/_category_.json
@@ -1,4 +1,4 @@
 {
-  "label": "Miden Guardian",
+  "label": "Guardian",
   "position": 4
 }
