fix(embed): fallback i18n when host app has no vue-i18n plugin

src/components/Toolbar.vue

@@ -116,13 +116,13 @@
 
 <script setup lang="ts">
 import { reactive, onMounted } from 'vue';
-import { useI18n } from 'vue-i18n';
 import updateLogs from "../data/updateLog.json"
 import { useFilesStore } from "@/ts/useStore";
 import { ElMessageBox } from "element-plus";
 import { useGlobalMessage } from "@/ts/useGlobalMessage";
 import { getLogicFlowInstance } from "@/ts/useLogicFlow";
 import { useCanvasSettings } from '@/ts/useCanvasSettings';
+import { useSafeI18n } from '@/ts/useSafeI18n';
 import type { Pinia } from 'pinia';
 
 const props = withDefaults(defineProps<{
@@ -136,8 +136,15 @@ const filesStore = props.piniaInstance ? useFilesStore(props.piniaInstance) : us
 const { showMessage } = useGlobalMessage();
 const { selectionEnabled, snapGridEnabled, snaplineEnabled } = useCanvasSettings();
 
-// 获取当前的 i18n 实例
+const { t } = useSafeI18n({
-const {t} = useI18n();
+  import: '导入',
+  export: '导出',
+  prepareCapture: '准备截图',
+  setWatermark: '设置水印',
+  loadExample: '加载样例',
+  updateLog: '更新日志',
+  feedback: '问题反馈'
+});
 
 // 定义响应式数据
 const state = reactive({

src/components/Yys.vue

@@ -116,7 +116,7 @@ import draggable from 'vuedraggable';
 import ShikigamiSelect from './flow/nodes/yys/ShikigamiSelect.vue';
 import ShikigamiProperty from './flow/nodes/yys/ShikigamiProperty.vue';
 import html2canvas from 'html2canvas';
-import {useI18n} from 'vue-i18n'
+import { useSafeI18n } from '@/ts/useSafeI18n';
 import { Quill, QuillEditor } from '@vueup/vue-quill'
 import '@vueup/vue-quill/dist/vue-quill.bubble.css'
 import '@vueup/vue-quill/dist/vue-quill.snow.css' // 引入样式文件
@@ -146,7 +146,7 @@ const clipboard = ref('');
 const { showMessage } = useGlobalMessage();
 
 // 获取当前的 i18n 实例
-const {t} = useI18n()
+const { t } = useSafeI18n()
 
 const copy = (str) => {
   clipboard.value = str

src/components/YysRank.vue

@@ -84,11 +84,11 @@ import shikigami from "../data/Shikigami.json"
 import ShikigamiSelect from "@/components/flow/nodes/yys/ShikigamiSelect.vue";
 import ShikigamiProperty from "@/components/flow/nodes/yys/ShikigamiProperty.vue";
 import _ from "lodash";
-import {useI18n} from "vue-i18n";
+import { useSafeI18n } from '@/ts/useSafeI18n';
 import draggable from 'vuedraggable';
 
 
-const {t} = useI18n()
+const { t } = useSafeI18n()
 
 const props = defineProps<{
   groups: any[];

src/components/flow/nodes/yys/PropertySelect.vue

@@ -238,12 +238,12 @@
 
 <script setup>
 import { ref, watch, computed } from 'vue';
-import { useI18n } from 'vue-i18n';
 import { CirclePlus } from '@element-plus/icons-vue';
+import { useSafeI18n } from '@/ts/useSafeI18n';
 // import YuhunSelect from "@/components/flow/nodes/yys/YuhunSelect.vue";
 
 // 获取当前的 i18n 实例
-const { t } = useI18n();
+const { t } = useSafeI18n();
 
 const props = defineProps({
   currentProperty: {

src/components/flow/nodes/yys/ShikigamiGroup.vue

@@ -112,7 +112,7 @@ import {ref, reactive, toRefs, nextTick} from 'vue';
 import ShikigamiSelect from './ShikigamiSelect.vue';
 import ShikigamiProperty from './ShikigamiProperty.vue';
 import html2canvas from 'html2canvas';
-import {useI18n} from 'vue-i18n'
+import { useSafeI18n } from '@/ts/useSafeI18n';
 import { Quill, QuillEditor } from '@vueup/vue-quill'
 import '@vueup/vue-quill/dist/vue-quill.bubble.css'
 import '@vueup/vue-quill/dist/vue-quill.snow.css' // 引入样式文件
@@ -147,7 +147,7 @@ const dialogTableVisible = ref(false)
 const {showMessage} = useGlobalMessage();
 
 // 获取当前的 i18n 实例
-const {t} = useI18n()
+const { t } = useSafeI18n()
 
 // 定义 QuillEditor 的 ref
 const shortDescriptionEditor = ref<InstanceType<typeof QuillEditor>>()

src/components/flow/nodes/yys/ShikigamiProperty.vue

@@ -127,12 +127,12 @@ import propertyData from "../../../../data/property.json";
 import {ref, watch, computed} from 'vue'
 import ShikigamiSelect from "@/components/flow/nodes/yys/ShikigamiSelect.vue";
 import YuhunSelect from "@/components/flow/nodes/yys/YuhunSelect.vue";
-import {useI18n} from 'vue-i18n'
+import { useSafeI18n } from '@/ts/useSafeI18n';
 // import YuhunSelect from "./YuhunSelect.vue";
 
 
 // 获取当前的 i18n 实例
-const {t} = useI18n()
+const { t } = useSafeI18n()
 
 const props = defineProps({
   currentShikigami: {

src/ts/useSafeI18n.ts

@@ -0,0 +1,22 @@
+import { useI18n } from 'vue-i18n'
+
+type TranslateFn = (key: string, ...args: any[]) => string
+
+export function useSafeI18n(fallbackMap: Record<string, string> = {}) {
+  let safeT: TranslateFn = (key) => fallbackMap[key] ?? key
+
+  try {
+    const { t } = useI18n()
+    safeT = (key: string, ...args: any[]) => {
+      const translated = t(key, ...args)
+      if (typeof translated === 'string' && translated.length > 0) {
+        return translated
+      }
+      return fallbackMap[key] ?? key
+    }
+  } catch {
+    // The host app may not install vue-i18n; fallback to key/default text.
+  }
+
+  return { t: safeT }
+}