chore(config): 更新模型配置为 moonshotai-cn/kimi-k2.5

opencode.json

@@ -1,17 +1,6 @@
 {
   "$schema": "https://opencode.ai/config.json",
-  "model": "opencode/gpt-5.2",
+  "model": "moonshotai-cn/kimi-k2.5",
-  "mcp": {
-    "pencil": {
-      "command": [
-        "/Applications/Pencil.app/Contents/Resources/app.asar.unpacked/out/mcp-server-darwin-arm64",
-        "--ws-port",
-        "57630"
-      ],
-      "enabled": true,
-      "type": "local"
-    }
-  },
   "permission": "allow",
   "plugin": [
     "@mohak34/opencode-notifier@latest"