Add GPT-5.5 (Codex CLI xhigh) skeleton-watch run

One-shot skeleton-watch generated via codex exec with model gpt-5.5 at
xhigh effort. The prompt was prefixed with an instruction forbidding the
model from reading or referencing any other file in the repo, so it works
purely from its own knowledge. Unmodified original output; renders clean
(no console errors), registered in the model JSON.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

models/gpt-5-5-xhigh.json

@@ -19,6 +19,13 @@
         "en": "Contributed via community PR #3 (a Codex workflow); the submitter did not specify the runtime or effort level."
       },
       "contributor": "XA2333"
+    },
+    "skeleton-watch": {
+      "note": {
+        "zh": "在 Codex CLI 中以 GPT-5.5（xhigh 思考档位，未使用任何 skill）一次生成；本页为未经修改的原始产出。提示词开头明确禁止阅读或参考本目录及仓库中的任何其它文件，要求完全凭模型自身知识独立完成。",
+        "en": "Generated in one shot by GPT-5.5 (xhigh effort, no skills) in Codex CLI; unmodified original output. The prompt explicitly forbade reading or referencing any other file in the directory or repository, requiring the model to work solely from its own knowledge."
+      },
+      "contributor": "Nagi-ovo"
     }
   }
 }