refactor(seller): 商家端系统性优化与 Vue3 迁移遗留问题修复

- 清理：删除 4 个未使用依赖、约 2700 行死代码（shop/ossManage 等）、tree-table 死组件、37 处未使用 import
- ESLint 9 flat config 升级（.eslintrc.js -> eslint.config.js），修复迁移遗留的 34 处真实 bug
- axios 重构：拦截器不再吞错、refreshToken 单例共享 Promise、超时收敛、form 序列化抽公共函数、vue-router 4 失效 API 修正
- 安全：4 处 v-html 增加 xss 过滤；logout 改为精确删除 localStorage 键
- API 重复定义收敛（delSpec/insertOrUpdateSpec、getDictData、ws）
- 首屏瘦身：tinymce 懒加载（约省 7.4MB）、core-js 按需 polyfill、vendor chunk 合并、dplayer/@antv/g2 动态 import、3 张大图压缩
- 页面修复：发布商品表单布局（iview 遗留 margin 移除）、beforeVideoUpload 补定义、el-tag type 空值、lili-dialog emits 声明、消息中心布局塌陷修复与样式重构、department-choose 空值、affix-time 不再发多余店铺请求、goods/distributionGoods 去掉品牌筛选

seller/package.json

@@ -10,7 +10,9 @@
   "scripts": {
     "serve": "vue-cli-service serve",
     "dev": "vue-cli-service serve",
-    "build": "vue-cli-service build"
+    "build": "vue-cli-service build",
+    "lint": "eslint .",
+    "lint:fix": "eslint . --fix"
   },
   "dependencies": {
     "@amap/amap-jsapi-loader": "0.0.7",
@@ -22,15 +24,11 @@
     "element-plus": "^2.14.1",
     "js-cookie": "^2.2.1",
     "nprogress": "^0.2.0",
-    "price-color": "^1.0.2",
     "sass": "^1.63.6",
     "sass-loader": "^10.4.1",
-    "sockjs-client": "^1.4.0",
     "swiper": "^6.3.5",
     "uuid": "^8.3.2",
     "vue": "^3.5.35",
-    "vue-awesome-swiper": "^4.1.1",
-    "vue-json-excel": "^0.3.0",
     "vue-lazyload": "^3.0.0",
     "vue-qr": "^5.0.3",
     "vue-router": "^4.6.4",
@@ -39,6 +37,7 @@
     "xss": "^1.0.7"
   },
   "devDependencies": {
+    "@eslint/js": "^10.0.1",
     "@vue/cli-plugin-babel": "^5.0.9",
     "@vue/cli-plugin-router": "^5.0.9",
     "@vue/cli-plugin-vuex": "^5.0.9",
@@ -46,11 +45,15 @@
     "@vue/compiler-sfc": "^3.5.35",
     "compression-webpack-plugin": "^10.0.0",
     "css-loader": "^6.10.0",
+    "eslint": "^9",
+    "eslint-plugin-vue": "^10",
+    "globals": "^17.13.0",
     "less": "^4.2.0",
     "less-loader": "^11.1.4",
     "style-loader": "^3.3.4",
     "style-resources-loader": "^1.5.0",
     "vue-cli-plugin-style-resources-loader": "^0.1.5",
+    "vue-eslint-parser": "^10",
     "webpack": "^5.95.0"
   },
   "resolutions": {