diff --git a/README.md b/README.md
index dfd02c2..cc69a65 100644
--- a/README.md
+++ b/README.md
@@ -95,6 +95,7 @@ Oxfmt 不负责代码质量，Oxlint 不负责 Vue 的完整类型推导；Vue S
 - 剧集正文按编号连续展示全部已写入剧集；点击目录定位正文，滚动正文同步高亮并保持当前目录项可见。目录分行显示集数和完整标题，执行记录可按需展开。切换角色／世界观等标签不会销毁阅读器或重置位置。
 - 主体身份、分镜设计和镜头生产共用 `DirectoryItem`：编号、完整标题和状态分层展示，桌面目录为 240–280px，窄屏改为可横向滚动的条目。目录标题与筛选固定，只有列表滚动。拆解结果的导出按钮与标签同排右对齐；形态图片筛选按内容区宽度自动排成一行或两列网格。
 - 侧栏导航与主体／剧集／镜头目录采用直角满行背景，移除列表两侧的内缩，悬停和选中态都铺满所在列。条目内部保留文字间距；窄屏横向目录仍保持独立滚动，不影响表单与弹窗的圆角。
+- 主体目录以母版缩略图搭配名称、编号与状态，默认保留行背景和细分隔线。人物优先复用选角接口的母版；缺少地址的条目进入可视区域后才读取正式身份图库，不为整份目录轮询。无母版或加载失败显示人物／场景／道具图标，候选与形态图不会替代母版；点击缩略图只切换主体，刷新目录可重试读取。
 - 身份、分镜、生产与图库的批量配置、说明和诊断统一放入 `WorkspaceTools`（Naive UI Drawer），按需覆盖当前工作区，不挤压列表。面板支持 Esc 或关闭按钮；关闭不会取消任务或清除配置。历史回执可从入口查看，新回执主动打开诊断；查询错误始终在外层可见。
 - 生产步骤的操作按钮保留上下间距；`ConfirmAction` 用稳定根元素承接外部间距，避免多根弹窗组件吞掉 `class`。
 - 右上角提供浅色、暗黑、跟随系统三种模式，默认跟随系统，选择保存在本机浏览器。存储被禁用时仍可在当前会话切换。
diff --git a/src/admin.css b/src/admin.css
index 461e381..e1a8232 100644
--- a/src/admin.css
+++ b/src/admin.css
@@ -494,6 +494,74 @@ body {
     gap: 7px;
     min-width: 0;
 }
+/* 可选前导内容用于主体母版，不改变剧集与镜头目录的原有排版。 */
+.n-button.directory-item.has-leading .n-button__content {
+    display: flex;
+    align-items: center;
+    gap: 12px;
+}
+.directory-item-leading {
+    display: flex;
+    flex-shrink: 0;
+}
+.directory-item.has-leading .directory-item-body {
+    flex: 1;
+}
+.identity-subject-list-content {
+    gap: 0;
+    padding: 0 0 8px;
+}
+.n-button.identity-subject-item {
+    min-height: 86px;
+    padding: 10px 14px;
+    border-bottom: 1px solid var(--app-border);
+}
+.n-button.identity-subject-item:not(.selected) {
+    background: var(--app-surface);
+}
+.n-button.identity-subject-item:not(.selected):hover {
+    background: var(--app-subtle);
+}
+.identity-subject-item .directory-item-body {
+    gap: 3px;
+}
+.identity-subject-item .directory-item-title {
+    order: 0;
+    font-size: 14px;
+    font-weight: 600;
+}
+.identity-subject-item .directory-item-eyebrow {
+    order: 1;
+    font-size: 10px;
+}
+.identity-subject-item .directory-item-meta {
+    order: 2;
+    gap: 4px 6px;
+    font-size: 10px;
+}
+.identity-thumbnail {
+    display: flex;
+    width: 48px;
+    height: 64px;
+    overflow: hidden;
+    background: var(--app-subtle);
+}
+.identity-thumbnail .n-image,
+.identity-thumbnail .n-image img {
+    width: 100%;
+    height: 100%;
+}
+.identity-thumbnail-placeholder {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    width: 100%;
+    height: 100%;
+    gap: 5px;
+    color: var(--app-muted);
+    font-size: 10px;
+}
 .directory-item-eyebrow {
     font:
         11px/1.5 ui-monospace,
diff --git a/src/components/ui/DirectoryItem.test.ts b/src/components/ui/DirectoryItem.test.ts
index 3da6e56..50d7b51 100644
--- a/src/components/ui/DirectoryItem.test.ts
+++ b/src/components/ui/DirectoryItem.test.ts
@@ -8,6 +8,17 @@ let wrapper: VueWrapper | undefined
 afterEach(() => wrapper?.unmount())
 
 describe('统一目录条目', () => {
+    it('主体缩略图使用可选前导槽位，与标题一起保留满行点击区域', () => {
+        wrapper = mount(DirectoryItem, {
+            props: { active: true },
+            slots: { leading: '<span>母版缩略图</span>', default: '林默', eyebrow: '@CH0001' }
+        })
+        expect(wrapper.classes()).toContain('has-leading')
+        expect(wrapper.get('.directory-item-leading').text()).toBe('母版缩略图')
+        expect(wrapper.get('.directory-item-title').text()).toBe('林默')
+        expect(wrapper.get('.directory-item-leading').element.closest('button')).toBe(wrapper.element)
+    })
+
     it('编号、长标题和多项状态各占独立层级，沿用 Naive 按钮', () => {
         const title = '雨夜霓虹街全景与记忆当铺外的人群和闪烁灯牌'
         wrapper = mount(DirectoryItem, {
@@ -48,6 +59,10 @@ describe('统一目录条目', () => {
         expect(css).toMatch(/\.directory-item-title\s*\{[^}]*overflow-wrap:\s*anywhere/)
         expect(css).toMatch(/\.directory-list-content\s*\{[^}]*flex-direction:\s*row;[^}]*width:\s*max-content/)
         expect(css).toContain('grid-template-columns: clamp(240px, 22%, 280px) minmax(0, 1fr)')
+        expect(css).toMatch(/\.identity-subject-list-content\s*\{[^}]*gap:\s*0;[^}]*padding:\s*0 0 8px/)
+        expect(css).toMatch(/\.n-button\.identity-subject-item\s*\{[^}]*min-height:\s*86px;[^}]*border-bottom:/)
+        expect(css).toMatch(/\.identity-thumbnail\s*\{[^}]*width:\s*48px;[^}]*height:\s*64px/)
+        expect(css).toMatch(/\.n-button\.identity-subject-item:not\(\.selected\)\s*\{[^}]*var\(--app-surface\)/)
     })
 
     it('侧栏与主体、镜头、剧集目录统一直角满行，保留文字内边距和移动端滚动', () => {
diff --git a/src/components/ui/DirectoryItem.vue b/src/components/ui/DirectoryItem.vue
index 28c332e..1690a0b 100644
--- a/src/components/ui/DirectoryItem.vue
+++ b/src/components/ui/DirectoryItem.vue
@@ -10,9 +10,10 @@ defineProps<{ active: boolean }>()
         quaternary
         block
         class="directory-item"
-        :class="{ selected: active }"
+        :class="{ selected: active, 'has-leading': !!$slots.leading }"
         :aria-current="active ? 'true' : undefined"
     >
+        <span v-if="$slots.leading" class="directory-item-leading"><slot name="leading" /></span>
         <span class="directory-item-body">
             <span v-if="$slots.eyebrow" class="directory-item-eyebrow"><slot name="eyebrow" /></span>
             <span class="directory-item-title"><slot /></span>
diff --git a/src/features/subject-identity/SubjectIdentityPage.vue b/src/features/subject-identity/SubjectIdentityPage.vue
index 3acc3e2..e137850 100644
--- a/src/features/subject-identity/SubjectIdentityPage.vue
+++ b/src/features/subject-identity/SubjectIdentityPage.vue
@@ -25,6 +25,8 @@ import IdentityEditor from './components/IdentityEditor.vue'
 import IdentityGallery from './components/IdentityGallery.vue'
 import IdentityImageDialog from './components/IdentityImageDialog.vue'
 import CastingCandidateDialog from './components/CastingCandidateDialog.vue'
+import IdentityThumbnail from './components/IdentityThumbnail.vue'
+import type { IdentitySubject } from './types'
 
 /** 主体身份工作区按正式主体聚合，不把同一主体的多个 Form 当成不同身份。 */
 const route = useRoute()
@@ -71,10 +73,21 @@ const imageOpen = ref(false)
 const castingOpen = ref(false)
 const pendingSelection = ref('')
 const anchor = computed(() => currentAnchor(images.value))
+const thumbnailRefreshKey = ref(0)
 const casting = computed(() => {
     const value = castingQuery.data.value
     return value && Array.isArray(value.items) ? value : null
 })
+const castingBySubject = computed(() => new Map(casting.value?.items.map(item => [item.subjectId, item]) ?? []))
+
+/** 详情与选角数据已有母版地址时直接复用，避免对每个角色重复查询。 */
+function thumbnailSource(item: IdentitySubject): string | null | undefined {
+    if (item.id === selectedId.value && detail.data.value) return anchor.value?.imageUrl ?? null
+    const row = castingBySubject.value.get(item.id)
+    if (row) return row.anchorImageUrl || (row.anchorImageId ? undefined : null)
+    if (item.id === selectedId.value) return null
+    return undefined
+}
 const filtered = computed(() =>
     subjects.value.filter(
         item =>
@@ -121,6 +134,7 @@ function exportReceipt() {
 
 /** 目录刷新同时读取正式形态和 Character Casting，避免无形态角色状态滞后。 */
 function refreshDirectory() {
+    thumbnailRefreshKey.value++
     void Promise.all([catalog.refresh(), castingQuery.refresh()])
 }
 
@@ -438,16 +452,22 @@ watch(
                         @click="select(item.id)"
                         class="identity-subject-item"
                         >{{ item.name }}
+                        <template #leading>
+                            <IdentityThumbnail
+                                :project-id="projectId"
+                                :subject-id="item.id"
+                                :name="item.name"
+                                :module="item.module"
+                                :identity-id="item.identity === null ? null : item.identity?.id"
+                                :source="thumbnailSource(item)"
+                                :refresh-key="thumbnailRefreshKey"
+                            />
+                        </template>
                         <template #eyebrow>{{ item.ref }}</template>
                         <template #meta>
                             <span>{{ item.forms.length }} 个形态</span
-                            ><span
-                                v-if="casting?.items.find(row => row.subjectId === item.id)"
-                                class="directory-status"
-                            >
-                                {{
-                                    castingStatusLabel(casting.items.find(row => row.subjectId === item.id)!.status)
-                                }}</span
+                            ><span v-if="castingBySubject.has(item.id)" class="directory-status">
+                                {{ castingStatusLabel(castingBySubject.get(item.id)!.status) }}</span
                             >
                         </template></DirectoryItem
                     >
diff --git a/src/features/subject-identity/components/IdentityThumbnail.vue b/src/features/subject-identity/components/IdentityThumbnail.vue
new file mode 100644
index 0000000..024b929
--- /dev/null
+++ b/src/features/subject-identity/components/IdentityThumbnail.vue
@@ -0,0 +1,107 @@
+<script setup lang="ts">
+import { NImage } from 'naive-ui'
+import { Box, MapPin, UserRound } from '@lucide/vue'
+import { computed, onBeforeUnmount, onMounted, ref, watch } from 'vue'
+import { referenceImageUrl } from '../../../lib/assets'
+import { subjectIdentityApi } from '../api'
+import { currentAnchor } from '../model'
+
+/** source 为 undefined 时按需查询；null 表示上层已确认没有母版，不能用候选或形态图替代。 */
+const props = defineProps<{
+    projectId: string
+    subjectId: string
+    name: string
+    module: string
+    identityId?: string | null
+    source?: string | null
+    refreshKey: number
+}>()
+const target = ref<HTMLElement>()
+const visible = ref(false)
+const loadedUrl = ref<string | null>(null)
+const loading = ref(false)
+const queryFailed = ref(false)
+const imageFailed = ref(false)
+const url = computed(() => referenceImageUrl((props.source === undefined ? loadedUrl.value : props.source) ?? ''))
+const kind = computed(() => ({ character: '人物', scene: '场景', prop: '道具' })[props.module] ?? '主体')
+const icon = computed(() => ({ character: UserRound, scene: MapPin, prop: Box })[props.module] ?? Box)
+const label = computed(() => {
+    if (imageFailed.value || queryFailed.value || (props.source && !url.value)) return `${props.name} · 母版暂不可用`
+    if (url.value) return `${props.name} · 身份母版`
+    if (loading.value || (!visible.value && props.source === undefined)) return `${props.name} · 母版待加载`
+    return `${props.name} · 暂无母版`
+})
+let observer: IntersectionObserver | undefined
+onMounted(() => {
+    if (typeof IntersectionObserver === 'undefined') {
+        visible.value = true
+        return
+    }
+    // 使用本目录的滚动容器，未进入可视区域的条目不发起额外接口请求。
+    observer = new IntersectionObserver(
+        entries => {
+            if (!entries.some(entry => entry.isIntersecting)) return
+            visible.value = true
+            observer?.disconnect()
+        },
+        { root: target.value?.closest('.n-scrollbar-container') ?? null }
+    )
+    if (target.value) observer.observe(target.value)
+})
+onBeforeUnmount(() => observer?.disconnect())
+watch(url, () => {
+    imageFailed.value = false
+})
+
+/** 仅读取正式主体的身份图库；切项目、筛选或刷新时中止旧请求，不轮询每个缩略图。 */
+watch(
+    () => [props.projectId, props.subjectId, props.identityId, props.source, props.refreshKey, visible.value],
+    async (_value, _oldValue, onCleanup) => {
+        loadedUrl.value = null
+        queryFailed.value = false
+        imageFailed.value = false
+        loading.value = false
+        if (!visible.value || props.source !== undefined || props.identityId === null) return
+        const controller = new AbortController()
+        onCleanup(() => controller.abort())
+        loading.value = true
+        try {
+            let identityId = props.identityId
+            if (!identityId) {
+                const identity = await subjectIdentityApi.get(props.subjectId, controller.signal)
+                if (controller.signal.aborted || !identity) return
+                if (identity.subjectId !== props.subjectId) throw new Error('主体身份不匹配')
+                identityId = identity.id
+            }
+            const images = await subjectIdentityApi.listImages(props.subjectId, controller.signal)
+            if (controller.signal.aborted) return
+            if (images.some(image => image.identityId !== identityId)) throw new Error('母版图片归属不匹配')
+            loadedUrl.value = currentAnchor(images)?.imageUrl ?? null
+        } catch {
+            if (!controller.signal.aborted) queryFailed.value = true
+        } finally {
+            if (!controller.signal.aborted) loading.value = false
+        }
+    },
+    { immediate: true }
+)
+</script>
+
+<template>
+    <span ref="target" class="identity-thumbnail" :title="label">
+        <NImage
+            v-if="url && !imageFailed"
+            :src="url"
+            :alt="label"
+            object-fit="cover"
+            preview-disabled
+            lazy
+            :img-props="{ referrerpolicy: 'no-referrer' }"
+            @error="imageFailed = true"
+        />
+        <span v-else class="identity-thumbnail-placeholder" role="img" :aria-label="label">
+            <component :is="icon" :size="22" :stroke-width="1.4" aria-hidden="true" />
+            <span aria-hidden="true">{{ kind }}</span>
+        </span>
+    </span>
+</template>
diff --git a/src/features/subject-identity/thumbnail.test.ts b/src/features/subject-identity/thumbnail.test.ts
new file mode 100644
index 0000000..c7abf97
--- /dev/null
+++ b/src/features/subject-identity/thumbnail.test.ts
@@ -0,0 +1,182 @@
+import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
+import { NImage } from 'naive-ui'
+import IdentityThumbnail from './components/IdentityThumbnail.vue'
+import { identityFixture, identityImageFixture } from './testing/fixtures'
+
+let wrapper: VueWrapper | undefined
+let observers: {
+    callback: IntersectionObserverCallback
+    observe: ReturnType<typeof vi.fn<(element: Element) => void>>
+    disconnect: ReturnType<typeof vi.fn<() => void>>
+}[] = []
+const props = {
+    projectId: 'project',
+    subjectId: 'subject-db-1',
+    name: '书店',
+    module: 'scene',
+    identityId: 'identity-db-1',
+    refreshKey: 0
+}
+
+beforeEach(() => {
+    observers = []
+    vi.stubGlobal(
+        'IntersectionObserver',
+        class {
+            observe = vi.fn<(element: Element) => void>()
+            disconnect = vi.fn<() => void>()
+            unobserve = vi.fn<(element: Element) => void>()
+            constructor(callback: IntersectionObserverCallback) {
+                observers.push({ callback, observe: this.observe, disconnect: this.disconnect })
+            }
+        }
+    )
+})
+afterEach(() => {
+    wrapper?.unmount()
+    wrapper = undefined
+    document.body.innerHTML = ''
+    vi.unstubAllGlobals()
+})
+
+/** 仅触发主体缩略图的可见事件，不触发 NImage 内部图片懒加载观察器。 */
+async function reveal() {
+    const observer = observers.find(item => item.observe.mock.calls.some(([element]) => element === wrapper!.element))!
+    observer.callback([{ isIntersecting: true } as IntersectionObserverEntry], {} as IntersectionObserver)
+    await flushPromises()
+    expect(observer.disconnect).toHaveBeenCalled()
+}
+
+/** 测试接口返回独立 Response，读取图片元数据不消耗生成额度。 */
+function response(data: unknown) {
+    return new Response(JSON.stringify({ data }))
+}
+
+describe('主体目录母版缩略图', () => {
+    it.each([
+        ['character', '人物'],
+        ['scene', '场景'],
+        ['prop', '道具']
+    ])('没有母版的 %s 显示类型占位，不补查或生成图片', async (module, label) => {
+        const fetcher = vi.fn<typeof fetch>()
+        vi.stubGlobal('fetch', fetcher)
+        wrapper = mount(IdentityThumbnail, { props: { ...props, module, source: null } })
+        await reveal()
+        expect(wrapper.text()).toBe(label)
+        expect(wrapper.get('[role="img"]').attributes('aria-label')).toContain('暂无母版')
+        expect(wrapper.findComponent(NImage).exists()).toBe(false)
+        expect(fetcher).not.toHaveBeenCalled()
+    })
+
+    it('直接复用目录母版地址，图片不抢占选择点击，加载失败显示默认占位', async () => {
+        const fetcher = vi.fn<typeof fetch>()
+        vi.stubGlobal('fetch', fetcher)
+        wrapper = mount(IdentityThumbnail, {
+            attachTo: document.body,
+            props: { ...props, source: '/storage/anchor.png' }
+        })
+        await reveal()
+        expect(wrapper.getComponent(NImage).props()).toMatchObject({ objectFit: 'cover', previewDisabled: true })
+        await wrapper.get('img').trigger('click')
+        expect(document.querySelector('.n-image-preview-container')).toBeNull()
+        await wrapper.get('img').trigger('error')
+        expect(wrapper.get('[role="img"]').attributes('aria-label')).toContain('母版暂不可用')
+        await wrapper.setProps({ source: '/storage/new-anchor.png' })
+        expect(wrapper.get('img').attributes('src')).toContain('/storage/new-anchor.png')
+        expect(fetcher).not.toHaveBeenCalled()
+    })
+
+    it('进入可视区域后才 GET 图库，仅选择权威母版，刷新时重新读取', async () => {
+        const fetcher = vi.fn<typeof fetch>().mockImplementation(async () =>
+            response([
+                identityImageFixture({
+                    id: 'candidate',
+                    isAnchor: false,
+                    enabled: false,
+                    imageUrl: '/storage/candidate.png'
+                }),
+                identityImageFixture({
+                    id: 'front',
+                    isAnchor: false,
+                    viewType: 'front',
+                    imageUrl: '/storage/front.png'
+                }),
+                identityImageFixture({ imageUrl: '/storage/anchor.png' })
+            ])
+        )
+        vi.stubGlobal('fetch', fetcher)
+        wrapper = mount(IdentityThumbnail, { props })
+        await flushPromises()
+        expect(fetcher).not.toHaveBeenCalled()
+        await reveal()
+        expect(fetcher).toHaveBeenCalledOnce()
+        expect(fetcher.mock.calls[0]?.[0]).toBe('/api/subjects/subject-db-1/identity/images')
+        expect(wrapper.get('img').attributes('src')).toContain('/storage/anchor.png')
+        await wrapper.setProps({ refreshKey: 1 })
+        await flushPromises()
+        expect(fetcher).toHaveBeenCalledTimes(2)
+        expect(fetcher.mock.calls.every(([, init]) => init?.method === 'GET')).toBe(true)
+    })
+
+    it('目录未附带身份摘要时先校验正式身份，再读取母版', async () => {
+        const fetcher = vi
+            .fn<typeof fetch>()
+            .mockImplementation(async url =>
+                response(String(url).endsWith('/images') ? [identityImageFixture()] : identityFixture())
+            )
+        vi.stubGlobal('fetch', fetcher)
+        wrapper = mount(IdentityThumbnail, { props: { ...props, identityId: undefined } })
+        await reveal()
+        expect(fetcher.mock.calls.map(([url]) => url)).toEqual([
+            '/api/subjects/subject-db-1/identity',
+            '/api/subjects/subject-db-1/identity/images'
+        ])
+        expect(wrapper.find('img').exists()).toBe(true)
+    })
+
+    it('切项目中止旧请求，即使迟到也不能覆盖新主体占位', async () => {
+        let finish!: (response: Response) => void
+        const fetcher = vi.fn<typeof fetch>().mockImplementation(
+            () =>
+                new Promise(resolve => {
+                    finish = resolve
+                })
+        )
+        vi.stubGlobal('fetch', fetcher)
+        wrapper = mount(IdentityThumbnail, { props })
+        await reveal()
+        await wrapper.setProps({
+            projectId: 'other-project',
+            subjectId: 'other-subject',
+            name: '另一主体',
+            source: null
+        })
+        expect(fetcher.mock.calls[0]?.[1]?.signal?.aborted).toBe(true)
+        finish(response([identityImageFixture()]))
+        await flushPromises()
+        expect(wrapper.find('img').exists()).toBe(false)
+        expect(wrapper.get('[role="img"]').attributes('aria-label')).toBe('另一主体 · 暂无母版')
+    })
+
+    it('候选与辅助视角不能冒充母版，跨身份图片返回错误占位', async () => {
+        const fetcher = vi
+            .fn<typeof fetch>()
+            .mockResolvedValueOnce(response([identityImageFixture({ isAnchor: false })]))
+            .mockResolvedValueOnce(response([identityImageFixture({ identityId: 'wrong-identity' })]))
+        vi.stubGlobal('fetch', fetcher)
+        wrapper = mount(IdentityThumbnail, { props })
+        await reveal()
+        expect(wrapper.get('[role="img"]').attributes('aria-label')).toContain('暂无母版')
+        await wrapper.setProps({ refreshKey: 1 })
+        await flushPromises()
+        expect(wrapper.get('[role="img"]').attributes('aria-label')).toContain('母版暂不可用')
+        expect(wrapper.find('img').exists()).toBe(false)
+    })
+
+    it('危险地址不写入图片，无效图片也不会触发生图', () => {
+        wrapper = mount(IdentityThumbnail, { props: { ...props, source: 'javascript:alert(1)' } })
+        expect(wrapper.find('img').exists()).toBe(false)
+        expect(wrapper.get('[role="img"]').attributes('aria-label')).toContain('母版暂不可用')
+    })
+})
diff --git a/src/features/workflows/pages.test.ts b/src/features/workflows/pages.test.ts
index 4c7a505..398723b 100644
--- a/src/features/workflows/pages.test.ts
+++ b/src/features/workflows/pages.test.ts
@@ -220,6 +220,74 @@ describe('内容级滚动下的生产反馈', () => {
 })
 
 describe('视觉风格与主体身份工作区', () => {
+    it('主体目录显示已确认母版和默认占位，点缩略图只切换主体，不重复读取所有角色图库', async () => {
+        const first = formFixture()
+        const forms = [
+            first,
+            ...[2, 3].map(index => ({
+                ...first,
+                id: `form-${index}`,
+                subjectId: `subject-${index}`,
+                images: [],
+                subject: { ...first.subject, id: `subject-${index}`, ref: `@CH000${index}`, name: `角色${index}` }
+            }))
+        ]
+        const fetcher = vi.fn<typeof fetch>().mockImplementation(async url => {
+            const path = String(url)
+            if (path.endsWith('/subject-forms')) return jsonResponse(forms)
+            if (path.endsWith('/visual-style')) return jsonResponse(styleFixture())
+            if (path.endsWith('/character-casting/readiness'))
+                return jsonResponse({
+                    total: 3,
+                    ready: 2,
+                    missingIdentity: 0,
+                    missingAnchor: 1,
+                    candidatePending: 0,
+                    unlocked: 0,
+                    locked: 2,
+                    items: forms.map((form, index) => ({
+                        subjectId: form.subjectId,
+                        subjectRef: form.subject.ref,
+                        subjectName: form.subject.name,
+                        status: index === 2 ? 'missing_anchor' : 'ready',
+                        isLocked: index !== 2,
+                        anchorImageId: index === 2 ? undefined : `anchor-${index}`,
+                        anchorImageUrl: index === 2 ? undefined : `/storage/anchor-${index}.png`,
+                        candidateImages: [{ id: 'candidate', imageUrl: '/storage/candidate.png' }]
+                    }))
+                })
+            const second = path.includes('/subject-2/')
+            if (path.endsWith('/identity/images'))
+                return jsonResponse([
+                    identityImageFixture({
+                        identityId: second ? 'identity-2' : 'identity-db-1',
+                        imageUrl: `/storage/anchor-${second ? 1 : 0}.png`
+                    })
+                ])
+            return jsonResponse(
+                identityFixture({
+                    subjectId: second ? 'subject-2' : first.subjectId,
+                    id: second ? 'identity-2' : 'identity-db-1'
+                })
+            )
+        })
+        vi.stubGlobal('fetch', fetcher)
+        await mountAssets('identity')
+        await wrapper!.get('[aria-label="关闭操作面板"]').trigger('click')
+        await flushPromises()
+        const items = wrapper!.findAll('.identity-subject-item')
+        expect(items).toHaveLength(3)
+        expect(items[0]!.get('.identity-thumbnail img').attributes('src')).toContain('/storage/anchor-0.png')
+        expect(items[1]!.get('.identity-thumbnail img').attributes('src')).toContain('/storage/anchor-1.png')
+        expect(items[2]!.get('.identity-thumbnail [role="img"]').attributes('aria-label')).toContain('暂无母版')
+        expect(fetcher.mock.calls.filter(([url]) => String(url).endsWith('/identity/images'))).toHaveLength(1)
+        await items[1]!.get('.identity-thumbnail img').trigger('click')
+        await flushPromises()
+        expect(items[1]!.attributes('aria-pressed')).toBe('true')
+        expect(document.querySelector('.n-image-preview-container')).toBeNull()
+        expect(fetcher.mock.calls.every(([, init]) => init?.method === 'GET')).toBe(true)
+    })
+
     it('从形态深链接进入后，手动切换主体不会被目录刷新切回', async () => {
         const form = formFixture()
         const second = {