fix lexicon

lexicons/ai.syui.rse.admin.json

@@ -55,6 +55,26 @@
               }
             }
           },
+          "item": {
+            "type": "array",
+            "description": "Item definitions",
+            "items": {
+              "type": "object",
+              "required": ["id", "name", "text"],
+              "properties": {
+                "id": { "type": "integer", "description": "Item ID" },
+                "name": { "type": "string", "description": "Item name" },
+                "text": {
+                  "type": "object",
+                  "description": "Item description (localized)",
+                  "properties": {
+                    "en": { "type": "string", "description": "English text" },
+                    "ja": { "type": "string", "description": "Japanese text" }
+                  }
+                }
+              }
+            }
+          },
           "collection": {
             "type": "array",
             "description": "ATProto collection definitions",