chore: 更新 GPT-5.4 mini 小模型配置

opencode.json

@@ -1,12 +1,9 @@
 {
   "$schema": "https://opencode.ai/config.json",
+  "plugin": ["oh-my-opencode@latest"],
   "autoupdate": false,
   "model": "openai/gpt-5.4",
-  "small_model": "openai/gpt-5.1-codex-mini",
-  "experimental": {
-    "disable_paste_summary": true
-  },
-  "plugin": ["oh-my-opencode@latest"],
+  "small_model": "openai/gpt-5.4-mini",
   "provider": {
     "openai": {
       "npm": "@ai-sdk/openai",
@@ -27,8 +24,8 @@
           "modalities": { "input": ["text", "image", "pdf"], "output": ["text"] },
           "limit": { "context": 400000, "input": 272000, "output": 128000 }
         },
-        "gpt-5.1-codex-mini": {
-          "name": "GPT-5.1-Codex-Mini",
+        "gpt-5.4-mini": {
+          "name": "GPT-5.4 mini",
           "reasoning": true,
           "modalities": { "input": ["text", "image"], "output": ["text"] },
           "limit": { "context": 400000, "input": 272000, "output": 128000 }
@@ -63,5 +60,8 @@
         }
       }
     }
+  },
+  "experimental": {
+    "disable_paste_summary": true
   }
 }