chore: 移除未使用的 ui-icon-detect 模型(80MB)

- webpage-element.onnx 为实测首选模型，运行时永远先命中；
  ui-icon-detect/model.onnx 仅作为老安装包兜底回退，无实际使用场景
- 删除模型目录（含无引用的 preprocessor_config.json），运行时去掉兜底候选
- 上一个提交给打包加的 ui-icon-detect 拷贝行随之移除
- 注：git 历史中该 blob 仍存在（不做历史改写），仅工作区与新 clone 不再需要下载该模型

electron-builder.config.mjs

@@ -29,7 +29,6 @@ export default {
     { from: path.join(root, "resources", "capability-duplicates.json"), to: "capability-duplicates.json" },
     { from: path.join(root, "resources", "desktop-picker.ps1"), to: "desktop-picker.ps1" },
     { from: path.join(root, "resources", "models", "ui-element-detect"), to: "models/ui-element-detect" },
-    { from: path.join(root, "resources", "models", "ui-icon-detect"), to: "models/ui-icon-detect" },
     { from: path.join(root, "resources", "fixture"), to: "fixture" }
   ],
   asar: true,

resources/models/ui-icon-detect/preprocessor_config.json

@@ -1,12 +0,0 @@
-{
-  "do_normalize": false,
-  "do_rescale": true,
-  "do_resize": true,
-  "feature_extractor_type": "ImageFeatureExtractor",
-  "resample": 2,
-  "rescale_factor": 0.00392156862745098,
-  "size_divisor": 16,
-  "size": {
-    "longest_edge": 640
-  }
-}

src/main/local-vision/ui-detect-service.ts

@@ -41,11 +41,10 @@ export function localUiModelPath(): string {
     app.getAppPath() ? path.join(app.getAppPath(), "resources") : "",
     path.join(app.getAppPath(), "temp", "models")
   ].filter(Boolean);
-  // webpage-element 是实测后的首选模型；保留旧模型作为老安装包的兼容回退。
+  // webpage-element 是实测后的首选模型（旧 ui-icon-detect/model.onnx 兜底已移除，不再维护）
   const fileCandidates = rootCandidates.flatMap(root => [
     path.join(root, "models", "ui-element-detect", "webpage-element.onnx"),
-    path.join(root, "webpage-element.onnx"),
-    path.join(root, "models", "ui-icon-detect", "model.onnx")
+    path.join(root, "webpage-element.onnx")
   ]);
   const found = fileCandidates.find(candidate => {
     try { return fs.existsSync(candidate) && fs.statSync(candidate).isFile(); }