feat(web): I1 shell and I2 customer/project UI

Vue 3 + Element Plus layout with JWT login, RBAC routes, axios 401
handling with token restore, and Customers/Projects views wired to
platform APIs.

Made-with: Cursor

web/delivery-platform-ui/src/main.js

@@ -0,0 +1,33 @@
+import { createApp } from "vue";
+import { createPinia } from "pinia";
+import ElementPlus from "element-plus";
+import "element-plus/dist/index.css";
+import axios from "axios";
+import App from "./App.vue";
+import router from "./router";
+import { useAuthStore } from "./stores/auth";
+
+const pinia = createPinia();
+const app = createApp(App);
+app.use(pinia);
+
+useAuthStore(pinia).restoreAxiosAuth();
+
+axios.interceptors.response.use(
+  (r) => r,
+  (err) => {
+    if (err.response?.status === 401) {
+      const auth = useAuthStore();
+      auth.logout();
+      if (router.currentRoute.value.name !== "login") {
+        router.push({
+          name: "login",
+          query: { redirect: router.currentRoute.value.fullPath },
+        });
+      }
+    }
+    return Promise.reject(err);
+  },
+);
+
+app.use(router).use(ElementPlus).mount("#app");