完善配送端账户头像管理

backend/api/internal/logic/delivery/staff.go

@@ -6,6 +6,7 @@ import (
 	"git.apinb.com/bsm-sdk/core/errcode"
 	"git.apinb.com/bsm-sdk/core/infra"
 	"git.apinb.com/heqiapp/platforms/backend/api/internal/logic/common"
+	"git.apinb.com/heqiapp/platforms/backend/api/internal/logic/upload"
 	"git.apinb.com/heqiapp/platforms/backend/api/internal/models"
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
@@ -41,13 +42,26 @@ func GetStaff(ctx *gin.Context) {
 		ctx.Param("identity"), point.GasBasicID, point.ID, "delivery"), &staff)
 }
 
+// GetStaffAvatar 返回当前配送点范围内配送人员的受保护头像。
+func GetStaffAvatar(ctx *gin.Context) {
+	point, _, ok := currentScope(ctx)
+	if !ok {
+		return
+	}
+	staff, ok := scopedStaff(ctx, ctx.Param("identity"), point)
+	if !ok {
+		return
+	}
+	upload.ServeAvatar(ctx, staff.Avatar)
+}
+
 type staffRequest struct {
-	Username   string `json:"username"`
-	Password   string `json:"password"`
-	Name       string `json:"name" binding:"required,max=64"`
-	Phone      string `json:"phone" binding:"max=32"`
-	Avatar     string `json:"avatar" binding:"max=512"`
-	WorkStatus string `json:"work_status" binding:"required"`
+	Username   string  `json:"username"`
+	Password   string  `json:"password"`
+	Name       string  `json:"name" binding:"required,max=64"`
+	Phone      string  `json:"phone" binding:"max=32"`
+	Avatar     *string `json:"avatar" binding:"omitempty,max=512"`
+	WorkStatus string  `json:"work_status" binding:"required"`
 }
 
 func CreateStaff(ctx *gin.Context) {
@@ -66,9 +80,13 @@ func CreateStaff(ctx *gin.Context) {
 		infra.Response.Error(ctx, err)
 		return
 	}
+	avatar := ""
+	if request.Avatar != nil {
+		avatar = *request.Avatar
+	}
 	staff := models.StaffAccount{
 		Entity: common.NewEntity(common.StatusEnable), Username: request.Username, PasswordHash: hash,
-		Name: request.Name, Phone: request.Phone, Avatar: request.Avatar, RoleCode: "delivery",
+		Name: request.Name, Phone: request.Phone, Avatar: avatar, RoleCode: "delivery",
 		GasBasicID: point.GasBasicID, DeliveryBasicID: point.ID, WorkStatus: request.WorkStatus,
 	}
 	if err := common.CreateStaffRecord(&staff); err != nil {
@@ -92,9 +110,13 @@ func UpdateStaff(ctx *gin.Context) {
 		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
 		return
 	}
-	common.UpdateAllowedByIdentityWithError(ctx, &models.StaffAccount{}, gin.H{
-		"name": request.Name, "phone": request.Phone, "avatar": request.Avatar, "work_status": request.WorkStatus,
-	}, []string{"name", "phone", "avatar", "work_status"}, common.StaffWriteError)
+	values := gin.H{"name": request.Name, "phone": request.Phone, "work_status": request.WorkStatus}
+	// 未选择新头像时不提交 avatar，避免编辑基础资料误清空现有头像。
+	if request.Avatar != nil {
+		values["avatar"] = *request.Avatar
+	}
+	common.UpdateAllowedByIdentityWithError(ctx, &models.StaffAccount{}, values,
+		[]string{"name", "phone", "avatar", "work_status"}, common.StaffWriteError)
 }
 
 func ResetStaffPassword(ctx *gin.Context) {

backend/api/internal/logic/delivery/user.go

@@ -6,6 +6,7 @@ import (
 	"git.apinb.com/bsm-sdk/core/errcode"
 	"git.apinb.com/bsm-sdk/core/infra"
 	"git.apinb.com/heqiapp/platforms/backend/api/internal/logic/common"
+	"git.apinb.com/heqiapp/platforms/backend/api/internal/logic/upload"
 	"git.apinb.com/heqiapp/platforms/backend/api/internal/models"
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
@@ -57,13 +58,26 @@ func GetUser(ctx *gin.Context) {
 	infra.Response.Success(ctx, response)
 }
 
+// GetUserAvatar 返回当前配送点存在有效服务关系的用户受保护头像。
+func GetUserAvatar(ctx *gin.Context) {
+	point, _, ok := currentScope(ctx)
+	if !ok {
+		return
+	}
+	user, _, ok := scopedUser(ctx, ctx.Param("identity"), point.ID)
+	if !ok {
+		return
+	}
+	upload.ServeAvatar(ctx, user.Avatar)
+}
+
 type userRequest struct {
-	Username string `json:"username"`
-	Password string `json:"password"`
-	Name     string `json:"name" binding:"required,max=64"`
-	Phone    string `json:"phone" binding:"max=32"`
-	Avatar   string `json:"avatar" binding:"max=512"`
-	RealName string `json:"real_name" binding:"max=64"`
+	Username string  `json:"username"`
+	Password string  `json:"password"`
+	Name     string  `json:"name" binding:"required,max=64"`
+	Phone    string  `json:"phone" binding:"max=32"`
+	Avatar   *string `json:"avatar" binding:"omitempty,max=512"`
+	RealName string  `json:"real_name" binding:"max=64"`
 }
 
 func CreateUser(ctx *gin.Context) {
@@ -81,9 +95,13 @@ func CreateUser(ctx *gin.Context) {
 		infra.Response.Error(ctx, err)
 		return
 	}
+	avatar := ""
+	if request.Avatar != nil {
+		avatar = *request.Avatar
+	}
 	user := models.UserAccount{
 		Entity: common.NewEntity(common.StatusEnable), Username: request.Username, PasswordHash: hash,
-		Name: request.Name, Phone: request.Phone, Avatar: request.Avatar, RealName: request.RealName,
+		Name: request.Name, Phone: request.Phone, Avatar: avatar, RealName: request.RealName,
 	}
 	relation := models.UserServiceRelation{
 		Entity: common.NewEntity(common.StatusEnable), GasBasicID: point.GasBasicID, DeliveryBasicID: point.ID,
@@ -115,9 +133,12 @@ func UpdateUser(ctx *gin.Context) {
 		infra.Response.Error(ctx, errcode.ErrInvalidArgument)
 		return
 	}
-	if err := db().Model(&user).Updates(map[string]any{
-		"name": request.Name, "phone": request.Phone, "avatar": request.Avatar, "real_name": request.RealName,
-	}).Error; err != nil {
+	values := map[string]any{"name": request.Name, "phone": request.Phone, "real_name": request.RealName}
+	// 未选择新头像时不提交 avatar，避免编辑基础资料误清空现有头像。
+	if request.Avatar != nil {
+		values["avatar"] = *request.Avatar
+	}
+	if err := db().Model(&user).Updates(values).Error; err != nil {
 		infra.Response.Error(ctx, err)
 		return
 	}

backend/api/internal/routers/delivery.go

@@ -28,6 +28,7 @@ func RegisterDelivery(serviceKey string, engine *gin.Engine) {
 	staff.GET("", deliverylogic.ListStaff)
 	staff.POST("", deliverylogic.CreateStaff)
 	staff.GET("/:identity", deliverylogic.GetStaff)
+	staff.GET("/:identity/avatar", deliverylogic.GetStaffAvatar)
 	staff.PUT("/:identity", deliverylogic.UpdateStaff)
 	staff.PUT("/:identity/password", deliverylogic.ResetStaffPassword)
 	staff.PATCH("/:identity/status", deliverylogic.UpdateStaffStatus)
@@ -44,6 +45,7 @@ func RegisterDelivery(serviceKey string, engine *gin.Engine) {
 	user.GET("", deliverylogic.ListUser)
 	user.POST("", deliverylogic.CreateUser)
 	user.GET("/:identity", deliverylogic.GetUser)
+	user.GET("/:identity/avatar", deliverylogic.GetUserAvatar)
 	user.PUT("/:identity", deliverylogic.UpdateUser)
 	user.PUT("/:identity/password", deliverylogic.ResetUserPassword)
 	user.PATCH("/:identity/status", deliverylogic.UpdateUserStatus)

backend/api/internal/routers/delivery_test.go

@@ -45,6 +45,8 @@ func TestDeliveryOrderActionBoundary(t *testing.T) {
 		"POST /heqi/delivery/v1/gasorder_basic/:identity/adjust-amount",
 		"GET /heqi/delivery/v1/wallet_recharge",
 		"GET /heqi/delivery/v1/wallet_recharge/:identity",
+		"GET /heqi/delivery/v1/staff_account/:identity/avatar",
+		"GET /heqi/delivery/v1/user_account/:identity/avatar",
 	} {
 		if !routes[required] {
 			t.Fatalf("missing confirmed delivery action %s", required)

docs/操作日志_配送点独立资源页面_20260822.md

@@ -17,6 +17,8 @@
 5. 将配送端支付、退款资源统一为 `payment_order`、`payment_refund`，同步后端契约快照。
 6. 增加页面能力矩阵自动检查，并更新项目文档。
 7. 依据 5173 页面重新对齐灰色页面底、面包屑、分区卡片、详情信息网格、双列表单和底部操作区。
+8. 将配送人员和用户账户的头像文本框替换为 5173 头像摘要卡片，新增上传、预览、恢复默认头像和配送点范围鉴权读取能力。
+9. 修正配送人员、用户编辑接口：没有提交头像字段时保留旧头像，避免编辑其他资料时误清空。
 
 ## 操作后状态
 
@@ -43,11 +45,12 @@
 - `contract:check`：通过，18 个资源与后端契约一致。
 - `profile:check`：通过，资料专用只读页未回退。
 - `type:check`：通过。
-- `build`：通过，2622 个模块完成生产构建。
+- `build`：通过，2628 个模块完成生产构建。
 - `go test ./internal/logic/delivery`：通过。
 - `lint`：通过；仅报告项目既有警告，未产生失败项。
 - 浏览器回归：工作人员列表、详情、编辑、正式新建地址、返回链路、未保存保护、配送订单新建页、支付列表均通过。
 - 布局回归：工作人员详情、编辑和配送订单新建页已在应用内浏览器逐页截图检查，与 5173 的页面结构和响应式断点一致。
+- 头像回归：配送人员新建、编辑页已确认不再显示头像文本框，头像选择按钮、格式大小提示、默认头像和身份摘要均正常；后端头像路由测试通过。
 
 ## 风险评估
 

docs/项目文档_配送点独立资源页面_v1.0.md

@@ -33,6 +33,8 @@ frontend/delivery_admin/
     │   ├── ResourceDetailContent.vue  # 主记录和集合详情展示
     │   ├── ResourceFieldForm.vue      # 通用资源字段表单
     │   ├── ResourceActionDialog.vue   # 详情业务动作与危险确认
+    │   ├── ResourceAccountSummary.vue # 头像选择与账户身份摘要
+    │   ├── use-resource-avatar.ts     # 头像预览、上传和清除状态
     │   └── use-unsaved-record.ts      # 未保存离开保护
     └── views/shared/
         └── ResourceListPage.vue       # 跳转独立页面的标准列表
@@ -46,6 +48,8 @@ frontend/delivery_admin/
 
 页面布局与平台总后台保持一致：使用灰色页面背景、顶部面包屑和操作栏；详情由“基本信息”“关联记录”“业务操作”分区卡片组成；新建和编辑使用双列响应式表单，并将保存、取消操作固定在表单内容底部。
 
+配送人员和用户账户参考 5173 使用头像身份摘要卡片。新建、编辑时点击头像可选择不超过 2 MB 的 JPG/PNG 文件，保存时先上传到受控头像目录，再把返回 URI 写入资源；详情页通过配送点范围鉴权接口读取头像。未选择新头像时不会清空已有头像。
+
 `resource-record-form.ts` 为五类可编辑资源声明后端更新字段白名单，防止用户名、合同编号等只读字段出现在编辑页或被无效提交。
 
 支付与退款资源统一使用后端正式名称 `payment_order`、`payment_refund`，菜单地址仍保持 `/finance/payments`、`/finance/refunds`，避免接口路径不一致导致 404。

frontend/delivery_admin/scripts/check-resource-pages.mjs

@@ -60,5 +60,10 @@ assert(resourcePage.includes('ResourceListPage'), '标准资源列表尚未切
 assert(!resourcePage.includes('CrudListPage'), '活动列表仍依赖抽屉式 CrudListPage');
 assert(definitions.includes("define('payment_order'"), '支付资源必须使用后端名称 payment_order');
 assert(definitions.includes("define('payment_refund'"), '退款资源必须使用后端名称 payment_refund');
+assert(routeKeys.has('GET /staff_account/:identity/avatar'), '配送人员缺少受保护头像读取接口');
+assert(routeKeys.has('GET /user_account/:identity/avatar'), '用户账户缺少受保护头像读取接口');
+const recordPage = read('src/views/resource/ResourceRecordPage.vue');
+assert(recordPage.includes('ResourceAccountSummary'), '账户资源页尚未接入 5173 头像摘要卡片');
+assert(recordPage.includes("field.key !== 'avatar'"), '头像字段仍可能显示为普通文本框');
 
 console.log(`独立资源页面契约通过：详情 ${listResources.length}，新建 ${creatable.size}，编辑 ${editable.size}`);

frontend/delivery_admin/src/api/avatar.ts

@@ -0,0 +1,50 @@
+/**
+ * 功能描述：提供配送点资源头像上传与鉴权读取。
+ * 版本：v1.0.0。
+ */
+import { getToken } from '@/utils/auth';
+
+const deliveryApiBaseURL =
+  import.meta.env.VITE_API_BASE_URL || 'http://localhost:12426/heqi/delivery/v1';
+
+export type AvatarUploadReply = {
+  uri: string;
+  original_name: string;
+  content_type: string;
+  size: number;
+};
+
+type ApiEnvelope<T> = { code?: number; message?: string; details?: T };
+
+/** 返回与现有配送点请求一致的 JWT 请求头。 */
+function authorizationHeaders(): Record<string, string> {
+  const token = getToken();
+  return token ? { Authorization: token } : {};
+}
+
+/** 上传经过前端预检的头像文件。 */
+async function upload(file: File): Promise<AvatarUploadReply> {
+  const form = new FormData();
+  form.append('file', file);
+  const baseURL = new URL(deliveryApiBaseURL, window.location.origin);
+  const response = await fetch(new URL('/upload/avatar', baseURL.origin), {
+    method: 'POST', headers: authorizationHeaders(), body: form,
+  });
+  const payload = (await response.json()) as ApiEnvelope<AvatarUploadReply>;
+  if (!response.ok || payload.code !== 0 || !payload.details)
+    throw new Error(payload.message || '头像上传失败');
+  return payload.details;
+}
+
+/** 读取配送点权限范围内的受保护头像。 */
+async function load(resource: string, identity: string): Promise<Blob | undefined> {
+  const response = await fetch(
+    `${deliveryApiBaseURL}${resource}/${encodeURIComponent(identity)}/avatar`,
+    { headers: authorizationHeaders() },
+  );
+  if (response.status === 404) return undefined;
+  if (!response.ok) throw new Error('头像读取失败');
+  return response.blob();
+}
+
+export const avatarApi = { upload, load };

frontend/delivery_admin/src/views/resource/ResourceAccountSummary.vue

@@ -0,0 +1,98 @@
+<!-- 功能描述：参考 5173 展示账户头像和身份摘要。版本：v1.0.0。 -->
+<template>
+  <a-card class="account-card" :bordered="false">
+    <div class="account-summary">
+      <div class="avatar-column">
+        <button
+          class="avatar-button"
+          type="button"
+          :disabled="mode === 'detail'"
+          :aria-label="mode === 'detail' ? '账户头像' : '选择账户头像'"
+          @click="chooseAvatar"
+        >
+          <a-avatar :size="120" class="account-avatar">
+            <img :src="avatarUrl" alt="账户头像" />
+          </a-avatar>
+          <span v-if="mode !== 'detail'" class="camera-badge"><icon-camera /></span>
+        </button>
+        <input ref="avatarInput" class="avatar-input" type="file" accept="image/jpeg,image/png" @change="onSelected" />
+        <span v-if="mode !== 'detail'" class="avatar-help">JPG/PNG，最大 2 MB</span>
+        <a-button v-if="mode !== 'detail' && canClear" type="text" size="mini" @click="emit('clear-avatar')">
+          恢复默认头像
+        </a-button>
+      </div>
+      <div class="identity-summary">
+        <h2>{{ summaryTitle }}</h2>
+        <dl>
+          <div><dt>用户名：</dt><dd>{{ String(record.username ?? '保存后确定') }}</dd></div>
+          <div><dt>唯一标识：</dt><dd class="identity-value">{{ String(record.identity ?? '保存后生成') }}</dd></div>
+          <div><dt>创建时间：</dt><dd>{{ createdAt }}</dd></div>
+        </dl>
+      </div>
+    </div>
+  </a-card>
+</template>
+
+<script setup lang="ts">
+import dayjs from 'dayjs';
+import { IconCamera } from '@arco-design/web-vue/es/icon';
+import { computed, ref } from 'vue';
+import type { ResourceRow } from '@/api/resource-record-form';
+
+const props = defineProps<{
+  mode: 'create' | 'detail' | 'edit'; title: string; record: ResourceRow;
+  avatarUrl: string; canClear: boolean;
+}>();
+const emit = defineEmits<{ 'select-avatar': [file: File]; 'clear-avatar': [] }>();
+const avatarInput = ref<HTMLInputElement>();
+const summaryTitle = computed(() => String(
+  props.record.name ?? props.record.real_name ?? props.record.username ??
+    (props.mode === 'create' ? `新建${props.title}` : props.title),
+));
+const createdAt = computed(() => {
+  if (!props.record.created_at) return '保存后生成';
+  const value = dayjs(String(props.record.created_at));
+  return value.isValid() ? value.format('YYYY-MM-DD HH:mm:ss') : String(props.record.created_at);
+});
+
+function chooseAvatar() {
+  if (props.mode !== 'detail') avatarInput.value?.click();
+}
+
+function onSelected(event: Event) {
+  const input = event.target as HTMLInputElement;
+  const file = input.files?.[0];
+  if (file) emit('select-avatar', file);
+  input.value = '';
+}
+</script>
+
+<style scoped lang="less">
+.account-card { border-radius: 10px; }
+.account-summary {
+  display: grid; grid-template-columns: 180px minmax(360px, 500px);
+  justify-content: center; align-items: center; gap: 44px; min-height: 168px; padding: 18px 32px;
+}
+.avatar-column { display: flex; flex-direction: column; align-items: center; gap: 8px; }
+.avatar-button { position: relative; padding: 0; background: transparent; border: 0; cursor: pointer; }
+.avatar-button:disabled { cursor: default; }
+.account-avatar { background: var(--color-fill-3); }
+.account-avatar img { width: 100%; height: 100%; object-fit: cover; }
+.camera-badge {
+  position: absolute; right: 2px; bottom: 2px; display: grid; width: 34px; height: 34px;
+  place-items: center; color: rgb(var(--primary-6)); background: var(--color-bg-2);
+  border: 3px solid var(--color-bg-2); border-radius: 50%; box-shadow: 0 2px 8px rgb(0 0 0 / 10%);
+}
+.avatar-input { display: none; }
+.avatar-help { color: var(--color-text-3); font-size: 12px; }
+.identity-summary h2 { margin: 0 0 14px; color: var(--color-text-1); font-size: 20px; }
+.identity-summary dl, .identity-summary dd { margin: 0; }
+.identity-summary dl > div { display: grid; grid-template-columns: 92px minmax(0, 1fr); align-items: center; min-height: 38px; }
+.identity-summary dt { color: var(--color-text-3); text-align: right; }
+.identity-summary dd { color: var(--color-text-1); font-size: 15px; }
+.identity-value { color: rgb(var(--primary-6)) !important; word-break: break-all; }
+@media (max-width: 760px) {
+  .account-summary { grid-template-columns: 1fr; gap: 20px; padding: 20px 8px; }
+  .identity-summary { width: min(100%, 440px); margin: 0 auto; }
+}
+</style>

frontend/delivery_admin/src/views/resource/ResourceDetailContent.vue

@@ -69,6 +69,9 @@ const entries = computed(() =>
   Object.entries(record.value).filter(
     ([key, value]) =>
       key !== 'id' &&
+      key !== 'avatar' &&
+      key !== 'password' &&
+      key !== 'password_hash' &&
       key !== 'DeletedAt' &&
       key !== 'deleted_at' &&
       !key.endsWith('_id') &&

frontend/delivery_admin/src/views/resource/ResourceRecordPage.vue

@@ -29,6 +29,16 @@
     </a-result>
 
     <template v-else>
+      <ResourceAccountSummary
+        v-if="hasAvatarField"
+        :mode="mode"
+        :title="definition.title"
+        :record="summaryRecord"
+        :avatar-url="avatar.url.value"
+        :can-clear="avatar.canClear.value"
+        @select-avatar="avatar.select"
+        @clear-avatar="avatar.clear"
+      />
       <template v-if="mode === 'detail'">
         <ResourceDetailContent :definition="definition" :detail="detail" />
         <a-card
@@ -102,9 +112,11 @@ import { primaryRecord, recordEditReason } from '@/api/resource-display';
 import { recordRouteLocation, returnToList, safeReturnPath } from '@/api/resource-navigation';
 import { getResource, type DetailAction, type ResourceField } from '@/api/resources';
 import ResourceActionDialog from './ResourceActionDialog.vue';
+import ResourceAccountSummary from './ResourceAccountSummary.vue';
 import ResourceDetailContent from './ResourceDetailContent.vue';
 import ResourceFieldForm from './ResourceFieldForm.vue';
 import { useUnsavedRecord } from './use-unsaved-record';
+import { useResourceAvatar } from './use-resource-avatar';
 
 type RecordPageMode = 'create' | 'detail' | 'edit';
 const route = useRoute();
@@ -126,11 +138,18 @@ const relationLoading = reactive<Record<string, boolean>>({});
 const relationTimers = new Map<string, ReturnType<typeof setTimeout>>();
 const actionVisible = ref(false);
 const activeAction = ref<DetailAction>();
+const avatar = useResourceAvatar();
+const hasAvatarField = computed(() =>
+  definition.value.fields.some((field) => field.key === 'avatar'),
+);
+const summaryRecord = computed(() =>
+  mode.value === 'detail' ? record.value : { ...record.value, ...form },
+);
 const formFields = computed(() => recordFormFields(
   definition.value.name,
   definition.value.fields,
   mode.value as 'create' | 'edit',
-));
+).filter((field) => field.key !== 'avatar'));
 const canEditRecord = computed(
   () => definition.value.canEdit && !recordEditReason(definition.value, record.value),
 );
@@ -142,7 +161,7 @@ const visibleActions = computed(() =>
   ),
 );
 const unsaved = useUnsavedRecord(
-  () => JSON.stringify(form),
+  () => JSON.stringify({ form, avatar: avatar.marker() }),
   () => mode.value !== 'detail',
 );
 
@@ -160,6 +179,10 @@ async function loadRecord() {
         if (reason) throw new Error(reason);
       }
     }
+    if (hasAvatarField.value && mode.value !== 'create') {
+      // 头像属于附加信息，读取失败不能阻断基础资料页面。
+      await avatar.load(definition.value.resource, identity.value).catch(() => undefined);
+    }
     if (mode.value !== 'detail') {
       resetResourceRecordForm(form, formFields.value, record.value, {
         relationKey: typeof route.query.relation_key === 'string' ? route.query.relation_key : undefined,
@@ -181,6 +204,7 @@ async function save() {
   saving.value = true;
   try {
     const payload = buildResourcePayload(formFields.value, form, mode.value as 'create' | 'edit');
+    if (hasAvatarField.value) await avatar.applyToPayload(payload);
     const saved = mode.value === 'create'
       ? await resourceApi.create<ResourceRow>(definition.value.resource, payload)
       : await resourceApi.update<ResourceRow>(definition.value.resource, identity.value, payload);

frontend/delivery_admin/src/views/resource/avatar-upload-cache.ts

@@ -0,0 +1,26 @@
+/** 功能描述：缓存单次保存流程中已上传的头像地址。版本：v1.0.0。 */
+export type AvatarUpload = (file: File) => Promise<{ uri: string }>;
+
+/** 创建可重试的头像上传结果缓存。 */
+export function createAvatarUploadCache(upload: AvatarUpload) {
+  let cachedFile: File | undefined;
+  let cachedURI: Promise<string> | undefined;
+
+  async function resolve(file: File) {
+    if (cachedFile !== file || !cachedURI) {
+      cachedFile = file;
+      cachedURI = upload(file).then((result) => result.uri).catch((error) => {
+        if (cachedFile === file) cachedURI = undefined;
+        throw error;
+      });
+    }
+    return cachedURI;
+  }
+
+  function reset() {
+    cachedFile = undefined;
+    cachedURI = undefined;
+  }
+
+  return { resolve, reset };
+}

frontend/delivery_admin/src/views/resource/use-resource-avatar.ts

@@ -0,0 +1,72 @@
+/** 功能描述：管理资源头像的读取、预览、清除与保存前上传。版本：v1.0.0。 */
+import { Message } from '@arco-design/web-vue';
+import { onBeforeUnmount, ref } from 'vue';
+import { avatarApi } from '@/api/avatar';
+import { DEFAULT_USER_AVATAR } from '@/constants/avatar';
+import { createAvatarUploadCache } from './avatar-upload-cache';
+
+/** 创建资源头像状态。 */
+export function useResourceAvatar() {
+  const url = ref(DEFAULT_USER_AVATAR);
+  const file = ref<File>();
+  const cleared = ref(false);
+  const canClear = ref(false);
+  const uploadCache = createAvatarUploadCache(avatarApi.upload);
+  let objectURL = '';
+
+  function revoke() {
+    if (objectURL) URL.revokeObjectURL(objectURL);
+    objectURL = '';
+  }
+
+  async function load(resource: string, identity: string) {
+    revoke();
+    uploadCache.reset();
+    url.value = DEFAULT_USER_AVATAR;
+    file.value = undefined;
+    cleared.value = false;
+    canClear.value = false;
+    if (!identity) return;
+    const blob = await avatarApi.load(resource, identity);
+    if (!blob) return;
+    objectURL = URL.createObjectURL(blob);
+    url.value = objectURL;
+    canClear.value = true;
+  }
+
+  function select(next: File) {
+    if (!['image/jpeg', 'image/png'].includes(next.type) || next.size <= 0 || next.size > 2 * 1024 * 1024) {
+      Message.warning('请选择不超过 2 MB 的 JPG 或 PNG 图片');
+      return;
+    }
+    revoke();
+    uploadCache.reset();
+    objectURL = URL.createObjectURL(next);
+    url.value = objectURL;
+    file.value = next;
+    cleared.value = false;
+    canClear.value = true;
+  }
+
+  function clear() {
+    revoke();
+    uploadCache.reset();
+    url.value = DEFAULT_USER_AVATAR;
+    file.value = undefined;
+    cleared.value = true;
+    canClear.value = false;
+  }
+
+  async function applyToPayload(payload: Record<string, unknown>) {
+    if (file.value) payload.avatar = await uploadCache.resolve(file.value);
+    else if (cleared.value) payload.avatar = '';
+  }
+
+  function marker() {
+    return file.value ? `${file.value.name}:${file.value.size}:${file.value.lastModified}`
+      : cleared.value ? 'clear' : 'unchanged';
+  }
+
+  onBeforeUnmount(revoke);
+  return { url, canClear, load, select, clear, applyToPayload, marker };
+}