feat(p89+p90): 复制表单链接 + 设计器整表预览

P89 复制填报链接（旧系统先例对齐：Cms AttachmentManage 的 copyToClipboard
+ 文案「链接已复制」；svc-hall 同款 execCommand 兜底）：
- 新增 utils/fillLink.ts：buildFillLink 从当前地址推导部署根（生产
  /form-center/front/、本地 dev=/），hash 路由 query 进 hash（#/f/{code}?appCode=），
  中心表单不带 appCode；copyToClipboard=navigator.clipboard 优先 +
  临时 textarea+execCommand 兜底，双失败亮链接提示手动复制不静默。
- Forms.vue 行操作「复制链接」文字链（P51 形态，收「更多」逻辑不动）；
  FormDesigner 头部「复制链接」按钮（草稿态可复制，发布后链接即生效）。

P90 设计器整表预览：
- 新增 components/designer/PreviewModal.vue：全屏 Modal 按填报视角渲染当前
  画布内容（含未保存改动）；控件件与填报页同源（fieldWidget pc），选项解析
  与 DesignerCanvas.resolvedOptions 同规则（inline 直用/字典引用展开，字典
  缺域显式降级）；必填红星/占位/约束 tip 同 Fill.vue 位；值容器本地可试填，
  不校验不提交；locked 只读态也可用；空分组/未知类型显式空态。
- FormDesigner 头部「预览」按钮。

验证：vue-tsc --noEmit 干净；vite build 通过。

src/views/admin/FormDesigner.vue

@@ -20,11 +20,13 @@ import DesignerCanvas from "@/components/designer/DesignerCanvas.vue";
 import FieldPropPanel from "@/components/designer/FieldPropPanel.vue";
 import FormConfigModal from "@/components/form/FormConfigModal.vue";
 import FormAdminModal from "@/components/admin/FormAdminModal.vue";
+import PreviewModal from "@/components/designer/PreviewModal.vue";
 import { formApi } from "@/api/module/form";
 import { dictApi } from "@/api/module/dict";
 import type { DictView, FormView, VersionView } from "@/types/form";
 import type { DesignField, DesignGroup } from "@/types/formSchema";
 import { MAX_CHANGE_LOG_LEN, MAX_NAME_LEN } from "@/types/formSchema";
+import { copyFillLink } from "@/utils/fillLink";
 import {
     buildSchemaJson,
     cloneField,
@@ -61,6 +63,8 @@ const baseline = ref("");
 const configRef = ref<InstanceType<typeof FormConfigModal> | null>(null);
 /** 单表单管理员弹窗（与设计器的「表单配置」并排，方案 §6.4：与表单列表行操作同一形态） */
 const adminRef = ref<InstanceType<typeof FormAdminModal> | null>(null);
+/** P90：整表预览弹层（含未保存改动，locked 只读态也可用） */
+const previewRef = ref<InstanceType<typeof PreviewModal> | null>(null);
 const publishModal = reactive({ visible: false, changeLog: "" });
 
 const locked = computed(() => viewingPublished.value);
@@ -306,6 +310,12 @@ function onConfigSaved(res: FormView) {
     form.value = res;
 }
 
+/** P89：复制当前表单的填报链接（草稿态也可复制——链接按 code 寻址，发布后即生效） */
+function onCopyLink() {
+    if (!form.value) return;
+    copyFillLink(form.value);
+}
+
 async function boot() {
     if (!uuid.value) {
         Message.warning("请从表单列表进入设计器");
@@ -348,6 +358,8 @@ onMounted(boot);
                 </span>
             </div>
             <div class="head-right">
+                <Button icon="ios-link" @click="onCopyLink">复制链接</Button>
+                <Button icon="ios-eye" @click="previewRef?.open()">预览</Button>
                 <Button @click="configRef?.open()">表单配置</Button>
                 <Button @click="adminRef?.open(uuid, form?.name)">表单管理员</Button>
                 <Button @click="copyAs">另存为副本</Button>
@@ -399,6 +411,7 @@ onMounted(boot);
 
         <FormConfigModal ref="configRef" :form="form" @saved="onConfigSaved" />
         <FormAdminModal ref="adminRef" />
+        <PreviewModal ref="previewRef" :groups="groups" :dicts="dicts" />
 
         <Modal v-model="publishModal.visible" title="发布新版本" :mask-closable="false">
             <p class="publish-tip">

src/views/admin/Forms.vue

@@ -16,6 +16,7 @@ import { useRouter } from "vue-router";
 import { Message, Modal } from "view-ui-plus";
 import { formApi } from "@/api/module/form";
 import { actionColumn } from "@/utils/tableActions";
+import { copyFillLink } from "@/utils/fillLink";
 import { useElementHeight } from "@/utils/hook/useElementHeight";
 import FormConfigModal from "@/components/form/FormConfigModal.vue";
 import FormAdminModal from "@/components/admin/FormAdminModal.vue";
@@ -105,6 +106,7 @@ const columns = computed(() => [
         [
             { key: "design", label: "设计", on: (row: FormView) => goDesigner(row) },
             { key: "config", label: "配置", on: (row: FormView) => openConfig(row) },
+            { key: "copyLink", label: "复制链接", on: (row: FormView) => copyFillLink(row) },
             {
                 key: "publish",
                 label: "发布",