diff --git a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/registry.ts b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/registry.ts
new file mode 100644
index 0000000..4e4c8c4
--- /dev/null
+++ b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/api/iaop/registry.ts
@@ -0,0 +1,106 @@
+/**
+ * 模型注册表 API 客户端（issue #183 [E2]）
+ *
+ * 封装 E1（#182）四接口（nginx 反代 /api/v1/registry/ → registry 服务 :8002）：
+ *   GET  /api/v1/registry/models                   列表（?stage= 过滤）
+ *   POST /api/v1/registry/models                   注册新版本
+ *   POST /api/v1/registry/models/{name}/{ver}/promote  阶段提升
+ *   POST /api/v1/registry/models/{name}/rollback       回滚
+ *
+ * 鉴权：携带 FBA access token（useAccessStore，与 requestClient 同源）。
+ * 统一错误：抛 Error（msg 来自服务端 / HTTP 状态），由调用方降级或提示。
+ */
+import { useAccessStore } from '@vben/stores';
+
+export interface RegistryModel {
+  name: string;
+  version: string;
+  backbone: string;
+  stage: 'dev' | 'staging' | 'prod';
+  description?: string;
+  registered_at?: number;
+  [k: string]: unknown;
+}
+
+export interface RegistryListResp {
+  models: RegistryModel[];
+  stage_pointers?: Record<string, Record<string, string>>;
+}
+
+const REG_BASE = '/api/v1/registry';
+
+function bearer(): string {
+  const accessStore = useAccessStore();
+  const token = accessStore.accessToken as string | undefined;
+  return token ? `Bearer ${token}` : '';
+}
+
+async function regFetch<T>(path: string, init?: RequestInit): Promise<T> {
+  let resp: Response;
+  try {
+    resp = await fetch(`${REG_BASE}${path}`, {
+      ...init,
+      headers: {
+        'Content-Type': 'application/json',
+        Authorization: bearer(),
+        ...(init?.headers || {}),
+      },
+    });
+  } catch {
+    throw new Error('注册表服务不可达');
+  }
+  const raw = await resp.text();
+  const data = (raw ? JSON.parse(raw) : {}) as { msg?: string; [k: string]: unknown };
+  if (!resp.ok) {
+    throw new Error(data.msg || `注册表 HTTP ${resp.status}`);
+  }
+  return data as T;
+}
+
+/** 模型列表（可按 stage 过滤） */
+export async function fetchRegistryModels(stage?: string): Promise<RegistryListResp> {
+  return regFetch<RegistryListResp>(stage ? `/models?stage=${stage}` : '/models');
+}
+
+/** 注册新版本（stage 默认 dev） */
+export async function registerModel(body: {
+  name: string;
+  version: string;
+  backbone?: string;
+  description?: string;
+  stage?: string;
+}): Promise<{ ok: boolean; model: RegistryModel }> {
+  return regFetch('/models', { method: 'POST', body: JSON.stringify(body) });
+}
+
+/** 阶段提升 */
+export async function promoteModel(
+  name: string,
+  version: string,
+): Promise<{ ok: boolean; model: RegistryModel }> {
+  return regFetch(`/models/${encodeURIComponent(name)}/${encodeURIComponent(version)}/promote`, {
+    method: 'POST',
+  });
+}
+
+/** 回滚某 stage 指针到指定版本 */
+export async function rollbackModel(
+  name: string,
+  stage: string,
+  version: string,
+): Promise<{ ok: boolean; model: RegistryModel }> {
+  return regFetch(`/models/${encodeURIComponent(name)}/rollback`, {
+    method: 'POST',
+    body: JSON.stringify({ stage, version }),
+  });
+}
+
+/** 注册表可用性探测（离线时调用方降级 localStorage） */
+export async function registryAvailable(): Promise<boolean> {
+  try {
+    await fetchRegistryModels();
+    return true;
+  } catch {
+    return false;
+  }
+}
diff --git a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/admin/models.vue b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/admin/models.vue
index 1279f25..c90172e 100644
--- a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/admin/models.vue
+++ b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/admin/models.vue
@@ -1,117 +1,194 @@
 <script setup lang="ts">
 /**
- * 模型管理（issue #172 [B6] 重构；#D2 样式对齐；2026-08-06 数据回退修复）
- *
- * 数据语义对齐旧版 web/admin/admin.js：
- * - 模型注册表持久化在 localStorage（key 与旧版相同：iaop.admin.models.v1），
- *   同源（39.101.182.167:8090）下旧版页面积累的数据自动迁移可见；
- * - 首次无数据时用旧版种子数据（含 author / updated_at）；
- * - 提升/回滚写回 localStorage（旧版行为），而非仅改内存。
+ * 模型管理（issue #183 [E2] 前端接入注册表 API）
+ * - 数据源：服务端注册表 API（list/promote/rollback 全走服务端，多用户共享）；
+ * - 降级：API 不可达时回退 localStorage（iaop.admin.models.v1，旧版 key），UI 标注「离线演示模式」；
+ * - 迁移：检测 localStorage 有数据且服务端在线时提示导入。
  */
-import { ref } from 'vue';
+import { computed, onMounted, ref } from 'vue';
 
 import { Page, VbenButton } from '@vben/common-ui';
+import { message } from 'antdv-next';
 
 import type { VxeTableGridOptions } from '#/adapter/vxe-table';
 import { useVbenVxeGrid } from '#/adapter/vxe-table';
+import {
+  fetchRegistryModels,
+  promoteModel,
+  registerModel,
+  rollbackModel,
+  type RegistryModel,
+} from '#/api/iaop/registry';
 
-interface ModelItem {
+const MODELS_KEY = 'iaop.admin.models.v1';
+
+interface LocalModel {
   name: string;
   version: string;
   stage: string;
-  author: string;
-  updated_at: string;
+  desc?: string;
 }
 
-const MODELS_KEY = 'iaop.admin.models.v1'; // 与旧版 admin.js 相同，同源共享
-
-function seedModels(): ModelItem[] {
-  return [
-    { name: 'quality_forecast', version: '1.2.0', stage: 'prod', author: 'bot_dev1', updated_at: '2026-08-01T09:00:00Z' },
-    { name: 'anomaly_detection', version: '1.0.3', stage: 'staging', author: 'bot_dev1', updated_at: '2026-08-02T09:00:00Z' },
-    { name: 'process_optimizer', version: '0.9.1', stage: 'dev', author: 'engineer', updated_at: '2026-08-03T09:00:00Z' },
-    { name: 'cross_process_optimizer', version: '0.5.0', stage: 'dev', author: 'engineer', updated_at: '2026-08-04T09:00:00Z' },
-  ];
-}
-
-function loadModels(): ModelItem[] {
+function loadLocal(): LocalModel[] {
   try {
     const raw = localStorage.getItem(MODELS_KEY);
-    if (raw) {
-      const arr = JSON.parse(raw);
-      if (Array.isArray(arr) && arr.length > 0) return arr;
-    }
-  } catch { /* 隐私模式等忽略 */ }
-  const seed = seedModels();
-  saveModels(seed);
-  return seed;
+    return raw ? (JSON.parse(raw) as LocalModel[]) : [];
+  } catch {
+    return [];
+  }
+}
+function saveLocal(list: LocalModel[]) {
+  try {
+    localStorage.setItem(MODELS_KEY, JSON.stringify(list));
+  } catch {
+    /* ignore */
+  }
 }
 
-function saveModels(list: ModelItem[]) {
-  try { localStorage.setItem(MODELS_KEY, JSON.stringify(list)); } catch { /* ignore */ }
-}
-
-const models = ref<ModelItem[]>(loadModels());
+const online = ref(false);      // 注册表服务在线？
+const loading = ref(true);
+const models = ref<RegistryModel[]>([]);
+const migrateVisible = ref(false);
 
 const gridOptions: VxeTableGridOptions = {
   rowConfig: { keyField: 'name' },
   height: 'auto',
   stripe: true,
-  pagerConfig: { enabled: true, pageSize: 10 },
   columns: [
     { title: '模型', field: 'name', minWidth: 180 },
-    { title: '版本', field: 'version', width: 110 },
-    { title: '阶段', field: 'stage', width: 100, slots: { default: 'stage' } },
-    { title: '作者', field: 'author', width: 110 },
-    { title: '更新时间', field: 'updated_at', width: 130, slots: { default: 'updated' } },
+    { title: '版本', field: 'version', width: 120 },
+    { title: '阶段', field: 'stage', width: 110, slots: { default: 'stage' } },
+    { title: '说明', field: 'description', minWidth: 220 },
     { title: '操作', field: 'action', width: 170, slots: { default: 'action' } },
   ],
   proxy: {
-    query: async ({ page } = {}) => {
-      // page 可能缺省（分页未就绪时的首次查询），兜底返回全量
-      const cur = page?.currentPage ?? 1;
-      const size = page?.pageSize ?? (models.value.length || 10);
-      return {
-        items: models.value.slice((cur - 1) * size, cur * size),
-        total: models.value.length,
-      };
-    },
+    query: async ({ page }) => ({
+      items: models.value.slice((page.currentPage - 1) * page.pageSize, page.currentPage * page.pageSize),
+      total: models.value.length,
+    }),
   },
 };
 
 const [Grid, gridApi] = useVbenVxeGrid({ gridOptions });
 
-function touch(m: ModelItem) {
-  m.updated_at = new Date().toISOString();
-  saveModels(models.value);
+async function refresh() {
   gridApi.query();
 }
 
-function promote(m: ModelItem) {
-  if (m.stage === 'dev') m.stage = 'staging';
-  else if (m.stage === 'staging') m.stage = 'prod';
-  touch(m);
+async function loadFromServer() {
+  const resp = await fetchRegistryModels();
+  models.value = resp.models;
 }
-function rollback(m: ModelItem) {
-  if (m.stage === 'prod') m.stage = 'staging';
-  else if (m.stage === 'staging') m.stage = 'dev';
-  touch(m);
+
+async function init() {
+  loading.value = true;
+  try {
+    await loadFromServer();
+    online.value = true;
+    // 迁移提示：本地有数据且服务端在线（且本地有服务端没有的模型）
+    const local = loadLocal();
+    const serverNames = new Set(models.value.map((m) => `${m.name}@${m.version}`));
+    const localExtra = local.filter((m) => !serverNames.has(`${m.name}@${m.version}`));
+    if (localExtra.length) {
+      migrateVisible.value = true;
+    }
+  } catch {
+    online.value = false;
+    const local = loadLocal();
+    models.value = local.map((m) => ({
+      name: m.name, version: m.version, stage: m.stage as RegistryModel['stage'],
+      description: m.desc, backbone: 'generic',
+    }));
+  } finally {
+    loading.value = false;
+    refresh();
+  }
 }
+
+async function promote(m: RegistryModel) {
+  if (online.value) {
+    try {
+      await promoteModel(m.name, m.version);
+      await loadFromServer();
+      refresh();
+      return;
+    } catch (e) {
+      message.error(`提升失败：${(e as Error).message}`);
+      return;
+    }
+  }
+  // 离线降级
+  m.stage = m.stage === 'staging' ? 'prod' : m.stage === 'dev' ? 'staging' : m.stage;
+  saveLocal(models.value.map((x) => ({ name: x.name, version: x.version, stage: x.stage, desc: x.description })));
+  refresh();
+}
+
+async function rollback(m: RegistryModel) {
+  if (online.value) {
+    try {
+      await rollbackModel(m.name, 'prod', m.version);
+      await loadFromServer();
+      refresh();
+      return;
+    } catch (e) {
+      message.error(`回滚失败：${(e as Error).message}`);
+      return;
+    }
+  }
+  m.stage = 'staging';
+  saveLocal(models.value.map((x) => ({ name: x.name, version: x.version, stage: x.stage, desc: x.description })));
+  refresh();
+}
+
+async function migrateLocal() {
+  const local = loadLocal();
+  let ok = 0;
+  let fail = 0;
+  for (const m of local) {
+    try {
+      await registerModel({ name: m.name, version: m.version, stage: m.stage, description: m.desc });
+      ok++;
+    } catch {
+      fail++;
+    }
+  }
+  await loadFromServer();
+  refresh();
+  migrateVisible.value = false;
+  if (fail === 0) {
+    localStorage.removeItem(MODELS_KEY);
+    message.success(`已导入 ${ok} 条本地模型到注册表`);
+  } else {
+    message.warning(`导入完成：成功 ${ok}，失败 ${fail}`);
+  }
+}
+
+const tagColor = (stage: string) =>
+  stage === 'prod' ? 'green' : stage === 'staging' ? 'orange' : 'blue';
+
+onMounted(init);
 </script>
 
 <template>
-  <Page title="模型管理" description="PRD 5.3 · 模板注册表 / 版本阶段流转">
-    <Grid>
-      <template #stage="{ row }">
-        <a-tag :color="row.stage === 'prod' ? 'green' : row.stage === 'staging' ? 'orange' : 'blue'">{{ row.stage }}</a-tag>
-      </template>
-      <template #updated="{ row }">
-        {{ (row.updated_at || '').slice(0, 10) }}
-      </template>
-      <template #action="{ row }">
-        <VbenButton size="small" :disabled="row.stage === 'prod'" @click="promote(row)">提升</VbenButton>
-        <VbenButton size="small" variant="outline" :disabled="row.stage === 'dev'" @click="rollback(row)">回滚</VbenButton>
-      </template>
-    </Grid>
+  <Page title="模型管理" :description="online ? 'PRD 5.3 · 服务端注册表（多用户共享）' : 'PRD 5.3 · 离线演示模式（注册表服务不可达，数据存本地）'">
+    <template #extra>
+      <a-tag :color="online ? 'green' : 'orange'">{{ online ? '● 服务端在线' : '● 离线演示模式' }}</a-tag>
+    </template>
+    <a-spin :spinning="loading">
+      <Grid>
+        <template #stage="{ row }">
+          <a-tag :color="tagColor(row.stage)">{{ row.stage }}</a-tag>
+        </template>
+        <template #action="{ row }">
+          <VbenButton size="small" :disabled="row.stage === 'prod'" @click="promote(row)">提升</VbenButton>
+          <VbenButton size="small" variant="outline" :disabled="row.stage !== 'prod'" @click="rollback(row)">回滚</VbenButton>
+        </template>
+      </Grid>
+    </a-spin>
+    <a-modal v-model:open="migrateVisible" title="本地模型导入注册表"
+      :on-ok="migrateLocal" ok-text="导入服务端" cancel-text="暂不">
+      <p>检测到本地 localStorage 中还有模型数据（旧版演示存储），是否导入服务端注册表？
+        导入后多用户共享，且本机数据将清除。</p>
+    </a-modal>
   </Page>
 </template>
diff --git a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/studio/version.vue b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/studio/version.vue
index 657baa0..3ecc756 100644
--- a/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/studio/version.vue
+++ b/deploy/fba/fba-ui-src/apps/web-antdv-next/src/views/iaop/studio/version.vue
@@ -1,13 +1,28 @@
 <script setup lang="ts">
+/**
+ * 模板版本发布（issue #183 [E2]）：发布 = 注册新版本到服务端注册表；
+ * 注册表离线时降级本地记录并标注。
+ */
 import { ref } from 'vue';
 
 import { Page, VbenButton } from '@vben/common-ui';
 import { MaterialSymbolsAdd } from '@vben/icons';
+import { message } from 'antdv-next';
 
 import type { VxeTableGridOptions } from '#/adapter/vxe-table';
 import { useVbenVxeGrid } from '#/adapter/vxe-table';
+import { registerModel } from '#/api/iaop/registry';
 
-const rows = ref([
+interface VersionRow {
+  version: string;
+  stage: string;
+  time: string;
+  author: string;
+  note: string;
+}
+
+const online = ref(false);
+const rows = ref<VersionRow[]>([
   { version: 'v1.0.0', stage: 'prod', time: '2026-08-05 10:00', author: 'bot_dev1', note: 'Ti 一期发布' },
   { version: 'v0.9.0', stage: 'staging', time: '2026-08-04 16:30', author: 'bot_dev1', note: '验收候选' },
   { version: 'v0.8.0', stage: 'dev', time: '2026-08-03 09:00', author: 'bot_dev1', note: '布局资产初版' },
@@ -24,32 +39,44 @@ const gridOptions: VxeTableGridOptions = {
     { title: '作者', field: 'author', width: 110 },
     { title: '说明', field: 'note', minWidth: 200 },
   ],
-  pagerConfig: { enabled: true, pageSize: 10 },
   proxy: {
-    query: async ({ page } = {}) => {
-      const cur = page?.currentPage ?? 1;
-      const size = page?.pageSize ?? 10;
-      return {
-        items: rows.value.slice((cur - 1) * size, cur * size),
-        total: rows.value.length,
-      };
-    },
+    query: async ({ page }) => ({
+      items: rows.value.slice((page.currentPage - 1) * page.pageSize, page.currentPage * page.pageSize),
+      total: rows.value.length,
+    }),
   },
 };
 
 const [Grid, gridApi] = useVbenVxeGrid({ gridOptions });
 
-function publish() {
-  rows.value.unshift({
-    version: 'v1.0.1', stage: 'staging', time: new Date().toISOString().slice(0, 16).replace('T', ' '),
-    author: 'admin', note: '手动发布',
-  });
+async function publish() {
+  const version = `v${Date.now() % 100000}`;
+  const name = 'iaop-template';
+  try {
+    // 发布 = 注册新版本到服务端注册表（staging）
+    await registerModel({ name, version, stage: 'staging', description: '手动发布（前端）' });
+    online.value = true;
+    rows.value.unshift({
+      version, stage: 'staging',
+      time: new Date().toISOString().slice(0, 16).replace('T', ' '),
+      author: 'admin', note: '已发布到服务端注册表',
+    });
+    message.success(`已注册 ${name}@${version}（staging）`);
+  } catch {
+    online.value = false;
+    rows.value.unshift({
+      version, stage: 'staging',
+      time: new Date().toISOString().slice(0, 16).replace('T', ' '),
+      author: 'admin', note: '离线降级（仅本地记录）',
+    });
+    message.warning('注册表服务不可达：本次发布仅本地记录');
+  }
   gridApi.query();
 }
 </script>
 
 <template>
-  <Page title="模板版本发布" description="PRD 5.7 · 版本管理 / 阶段流转">
+  <Page title="模板版本发布" :description="online ? 'PRD 5.7 · 发布 = 注册到服务端注册表' : 'PRD 5.7 · 版本管理（注册表离线时降级本地）'">
     <template #extra>
       <VbenButton variant="solid" @click="publish"><MaterialSymbolsAdd class="size-4" />发布新版本</VbenButton>
     </template>