chore(seller): 清理死代码与失效机制，生产构建剥离 console

- 删除零引用组件 main-components/message-tip.vue
- 清理 113 处 no-unused-vars（重点 goodsOperationSec 20+ 项、ossManage 25 项，含死代码链级联删除；renovation 的 ModelForm 为 vue-eslint-parser 误报，保留并核实）
- stores/app.js 移除只写不读的死字段（currNavTitle/menuTheme/themeColor/isFullScreen/messageCount/currentPageName/currentPath）及失效的 cachePage/dontCache 缓存页机制（无 keep-alive 消费方），同步清理 util.js/App.vue/Main.vue/shrinkable-menu/tags-page-opened 的调用点
- 删除 30 处 console.log 调试残留；生产构建 terser 配置 drop_console 兜底

seller/src/views/main-components/shrinkable-menu/shrinkable-menu.vue

@@ -36,7 +36,7 @@
 <script setup>
 import { computed, ref, watch, onMounted } from "vue";
 import { useRoute, useRouter } from "vue-router";
-import util, { HOME_NAV_NAME, HOME_NAV_ITEM } from "@/libs/util.js";
+import util, { HOME_NAV_NAME } from "@/libs/util.js";
 import { setStore } from "@/libs/storage";
 import { useAppStore } from "@/stores/app";
 
@@ -76,7 +76,6 @@ function syncRouteMenu(route) {
 
 function activateHomeNav() {
   appStore.setCurrNav(HOME_NAV_NAME);
-  appStore.setCurrNavTitle(HOME_NAV_ITEM.title);
   setStore("currNav", HOME_NAV_NAME);
   appStore.updateMenulist([]);
 }
@@ -92,7 +91,6 @@ function selectNav(name) {
   setStore("currNav", name);
   if (name === HOME_NAV_NAME) {
     appStore.updateMenulist([]);
-    appStore.setCurrNavTitle(HOME_NAV_ITEM.title);
     if (route.name !== "home_index") {
       router.push({ name: "home_index" });
     }