fix(web): preserve next on 401, validate redirect target, catch navigation rejections

web/src/components/layout/NavBar.vue

@@ -29,7 +29,7 @@ async function onSelect(key: string) {
       await authApi.logout()
     } finally {
       auth.clearSession()
-      router.replace({ name: 'login' })
+      router.replace({ name: 'login' }).catch(() => {})
     }
   }
 }

web/src/router/index.ts

@@ -7,13 +7,12 @@ const routes: RouteRecordRaw[] = [
     path: '/login',
     name: 'login',
     component: () => import('@/views/auth/LoginView.vue'),
-    meta: { layout: 'none' },
   },
   {
     path: '/',
     name: 'home',
     component: () => import('@/views/HomeView.vue'),
-    meta: { layout: 'app', requiresAuth: true },
+    meta: { requiresAuth: true },
   },
 ]
 
@@ -42,7 +41,9 @@ export function bindAuthToApi() {
     tokenProvider: () => auth.token,
     onUnauthorized: () => {
       auth.clearSession()
-      router.replace({ name: 'login' })
+      const current = router.currentRoute.value
+      const query = current.name === 'login' ? undefined : { next: current.fullPath }
+      router.replace({ name: 'login', query }).catch(() => {})
     },
   })
 }

web/src/views/auth/LoginView.vue

@@ -40,8 +40,10 @@ async function onSubmit() {
   try {
     const out = await authApi.login(email.value, password.value)
     auth.setSession(out.token, out.user)
-    const next = (router.currentRoute.value.query.next as string) || '/'
-    await router.replace(next)
+    const raw = router.currentRoute.value.query.next
+    const next =
+      typeof raw === 'string' && raw.startsWith('/') && !raw.startsWith('//') ? raw : '/'
+    await router.replace(next).catch(() => {})
   } catch (e) {
     error.value = e instanceof ApiException ? e.body.message : '登录失败'
   } finally {