diff --git a/apps/frontend/src/components/files/ImagePreviewList.tsx b/apps/frontend/src/components/files/ImagePreviewList.tsx
index 72ccacda..87422453 100644
--- a/apps/frontend/src/components/files/ImagePreviewList.tsx
+++ b/apps/frontend/src/components/files/ImagePreviewList.tsx
@@ -1,6 +1,7 @@
 import { Image, Typography } from 'antd'
 
 import type { UploadedFile } from '@/types/worker-platform'
+import { getImageIdentityFromUrl } from '@/utils/image-identity'
 
 type ImagePreviewListProps = {
   files?: UploadedFile[]
@@ -44,15 +45,10 @@ function normalizePreviewItems(files: UploadedFile[], imageUrls: string[]) {
       mediumUrl: file.mediumUrl || file.url,
     }))
     .filter((item) => Boolean(item.url))
-  const fileUrlSet = new Set(normalizedFiles.map((item) => getImageIdentity(item.url)))
+  const fileUrlSet = new Set(normalizedFiles.map((item) => getImageIdentityFromUrl(item.url)))
   const normalizedUrls = imageUrls
     .map((url) => String(url || '').trim())
-    .filter((url) => url && !fileUrlSet.has(getImageIdentity(url)))
+    .filter((url) => url && !fileUrlSet.has(getImageIdentityFromUrl(url)))
     .map((url) => ({ url, thumbnailUrl: url, mediumUrl: url }))
   return [...normalizedFiles, ...normalizedUrls]
 }
-
-/** 忽略临时签名参数，避免同一存储对象重复显示。 */
-function getImageIdentity(value: string) {
-  return String(value || '').trim().split(/[?#]/, 1)[0]
-}
diff --git a/apps/frontend/src/components/files/ImageUpload.tsx b/apps/frontend/src/components/files/ImageUpload.tsx
index fc9b0f10..0e4039dd 100644
--- a/apps/frontend/src/components/files/ImageUpload.tsx
+++ b/apps/frontend/src/components/files/ImageUpload.tsx
@@ -89,7 +89,10 @@ export default function ImageUpload({
         message.error(error instanceof Error ? error.message : '上传失败')
       }
     }
-    if (next.length > valueRef.current.length) onChange?.(next)
+    if (next.length > valueRef.current.length) {
+      valueRef.current = next
+      onChange?.(next)
+    }
   }
 
   async function uploadFiles(files: File[]) {
@@ -141,7 +144,10 @@ export default function ImageUpload({
   const customRequest: UploadProps['customRequest'] = async (options) => {
     try {
       const uploaded = await uploadFile(options.file as File, scene, scope)
-      onChange?.([...value, uploaded].slice(-maxCount))
+      // 多文件选择会并发执行 customRequest，必须以 ref 中的最新列表累加，避免后完成的上传覆盖前面的图片。
+      const next = [...valueRef.current, uploaded].slice(0, maxCount)
+      valueRef.current = next
+      onChange?.(next)
       options.onSuccess?.(uploaded)
     } catch (error) {
       message.error(error instanceof Error ? error.message : '上传失败')
@@ -160,14 +166,17 @@ export default function ImageUpload({
     >
       <Upload
         accept="image/jpeg,image/png,image/webp"
+        multiple
         listType="picture-card"
         fileList={fileList}
         maxCount={maxCount}
         customRequest={customRequest}
         onRemove={(file) => {
-          onChange?.(
-            value.filter((item) => (item.objectKey || item.url) !== file.uid),
+          const next = valueRef.current.filter(
+            (item) => (item.objectKey || item.url) !== file.uid,
           )
+          valueRef.current = next
+          onChange?.(next)
           return true
         }}
         showUploadList={{ showPreviewIcon: false }}
diff --git a/apps/frontend/src/pages/worker/WorkerOrdersPage.tsx b/apps/frontend/src/pages/worker/WorkerOrdersPage.tsx
index fb45a88d..63c35909 100644
--- a/apps/frontend/src/pages/worker/WorkerOrdersPage.tsx
+++ b/apps/frontend/src/pages/worker/WorkerOrdersPage.tsx
@@ -45,6 +45,7 @@ import type {
   WorkerAcceptance,
 } from '@/types/worker-platform'
 import { formatDateTime } from '@/utils/date-time'
+import { getImageIdentity } from '@/utils/image-identity'
 
 const STATUS_OPTIONS = [
   { value: '', label: '全部订单' },
@@ -169,7 +170,7 @@ export default function WorkerOrdersPage() {
       ? getWorkerAcceptance(order)
       : getWorkerDraft(order)
     setAcceptanceFiles(getUniqueAcceptanceFiles(source))
-    form.setFieldsValue({ note: String(source.note || '') })
+    form.setFieldsValue({ note: String(source?.note || '') })
     setDetailOrder(null)
   }
 
@@ -263,38 +264,43 @@ export default function WorkerOrdersPage() {
   const columns: TableColumnsType<WorkOrder> = [
     {
       title: '订单信息',
-      minWidth: 280,
+      width: 270,
       render: (_, row) => (
         <div className="cell-stack">
-          <Typography.Link onClick={() => setDetailOrder(row)}>
+          <Typography.Link
+            strong
+            onClick={() => setDetailOrder(row)}
+            title={row.productName || row.workOrderNo}
+            ellipsis
+          >
             {row.productName || row.workOrderNo}
           </Typography.Link>
-          <Space size={[6, 6]} wrap>
-            {row.categoryName ? <Tag>{row.categoryName}</Tag> : null}
+          <Space size={[4, 4]} wrap>
+            {row.categoryName ? <Tag color="blue">{row.categoryName}</Tag> : null}
             {row.myShare ? <Tag color="purple">拼单</Tag> : null}
           </Space>
-          <Typography.Text type="secondary">
-            {row.workOrderNo} · {row.platformOrderId || '-'}
+          <Typography.Text type="secondary" style={{ fontSize: 12 }} ellipsis={{ tooltip: `${row.workOrderNo} / ${row.platformOrderId || '-'}` }}>
+            {row.workOrderNo}
           </Typography.Text>
-          <Typography.Text type="secondary">
-            接单时间：{formatDateTime(row.assignedAt)}
+          <Typography.Text type="secondary" style={{ fontSize: 12 }}>
+            接单：{formatDateTime(row.assignedAt)}
           </Typography.Text>
         </div>
       ),
     },
     {
       title: '状态',
-      width: 170,
+      width: 130,
       render: (_, row) => (
         <div className="cell-stack">
-          <Space wrap size={6}>
+          <Space wrap size={4}>
             <Tag color={resolveStatusColor(row.status)}>{formatStatus(row.status)}</Tag>
             {row.status === 'in_progress' && row.deadlineAt ? (
               <DeadlineCountdown deadlineAt={row.deadlineAt} />
             ) : null}
           </Space>
           {row.status === 'problem' && String(row.problemNote || '').trim() ? (
-            <Typography.Text type="danger" ellipsis>
+            <Typography.Text type="danger" ellipsis={{ tooltip: row.problemNote }} style={{ fontSize: 12 }}>
               {row.problemNote}
             </Typography.Text>
           ) : null}
@@ -303,16 +309,18 @@ export default function WorkerOrdersPage() {
     },
     {
       title: '奖励 / 押金',
-      width: 150,
+      width: 140,
       render: (_, row) => (
         <div className="cell-stack">
-          <Typography.Text strong>{formatMoney(row.rewardAmount)}</Typography.Text>
-          <Typography.Text type="secondary">
-            冻结押金：{formatMoney(row.freezeDepositAmount)}
+          <Typography.Text strong style={{ color: '#cf1322' }}>
+            {formatMoney(row.rewardAmount)}
+          </Typography.Text>
+          <Typography.Text type="secondary" style={{ fontSize: 12 }}>
+            押金：{formatMoney(row.freezeDepositAmount)}
           </Typography.Text>
           {row.myShare ? (
-            <Typography.Text type="secondary">
-              {row.myShare.quantity} 份 · 份额 {formatMoney(row.myShare.shareReward)}
+            <Typography.Text type="secondary" style={{ fontSize: 12 }}>
+              {row.myShare.quantity} 份 · {formatMoney(row.myShare.shareReward)}
             </Typography.Text>
           ) : null}
         </div>
@@ -320,40 +328,38 @@ export default function WorkerOrdersPage() {
     },
     {
       title: '验收信息',
-      minWidth: 200,
+      width: 220,
       render: (_, row) => {
         const submittedAt = getAcceptanceSubmittedAt(row)
-        const hasAcceptance =
-          getAcceptanceFiles(row).length > 0 || getAcceptanceImageUrls(row).length > 0
-        const draftFiles = getDraftFiles(row)
-        const draftUrls = getDraftImageUrls(row)
-        const draftCount = draftFiles.length + draftUrls.length
+        const acceptanceFiles = getUniqueAcceptanceFiles(getWorkerAcceptance(row))
+        const hasAcceptance = acceptanceFiles.length > 0
+        const draftFiles = getUniqueAcceptanceFiles(getWorkerDraft(row))
+        const draftCount = draftFiles.length
+
         if (!hasAcceptance && !submittedAt && draftCount === 0) {
-          return <Typography.Text type="secondary">未提交</Typography.Text>
+          return <Typography.Text type="secondary" style={{ fontSize: 12 }}>未提交</Typography.Text>
         }
         return (
           <div className="cell-stack">
             {hasAcceptance ? (
-              <ImagePreviewList
-                files={getAcceptanceFiles(row)}
-                imageUrls={getAcceptanceImageUrls(row)}
-                size={40}
-              />
+              <ImagePreviewList files={acceptanceFiles} size={38} />
             ) : null}
             {submittedAt ? (
-              <Typography.Text type="secondary">
-                提交时间：{formatDateTime(submittedAt)}
+              <Typography.Text type="secondary" style={{ fontSize: 12 }}>
+                提交：{formatDateTime(submittedAt)}
               </Typography.Text>
             ) : null}
             {draftCount > 0 && !hasSubmittedAcceptance(row) ? (
-              <>
-                <Tag color="blue">已暂存 {draftCount} 张图片</Tag>
-                <ImagePreviewList files={draftFiles} imageUrls={draftUrls} size={40} />
-              </>
+              <div className="acceptance-draft-badge-wrap">
+                <Tag color="processing" icon={<PictureOutlined />}>
+                  已暂存 {draftCount} 张图片
+                </Tag>
+                <ImagePreviewList files={draftFiles} size={38} />
+              </div>
             ) : null}
-            {getWorkerAcceptance(row).note ? (
-              <Typography.Text type="secondary" ellipsis>
-                {getWorkerAcceptance(row).note}
+            {getWorkerAcceptance(row)?.note ? (
+              <Typography.Text type="secondary" ellipsis={{ tooltip: getWorkerAcceptance(row)?.note }} style={{ fontSize: 12 }}>
+                {getWorkerAcceptance(row)?.note}
               </Typography.Text>
             ) : null}
           </div>
@@ -362,7 +368,7 @@ export default function WorkerOrdersPage() {
     },
     {
       title: '快捷复制',
-      width: 280,
+      width: 250,
       render: (_, row) => {
         const items = getMaterialDetailItems(row).filter((item) =>
           String(item.value || '').trim(),
@@ -372,7 +378,7 @@ export default function WorkerOrdersPage() {
           <div className="cell-stack">
             {items.length > 0 ? (
               items.map((item) => (
-                <Typography.Text key={item.key} style={{ fontSize: 12 }} ellipsis>
+                <Typography.Text key={item.key} style={{ fontSize: 12 }} ellipsis={{ tooltip: `${item.label}: ${item.value}` }}>
                   {item.label}: {item.value}
                 </Typography.Text>
               ))
@@ -382,9 +388,9 @@ export default function WorkerOrdersPage() {
               </Typography.Text>
             )}
             {screenshots.length > 0 ? (
-              <ImagePreviewList files={screenshots} size={36} />
+              <ImagePreviewList files={screenshots} size={34} />
             ) : null}
-            <Space wrap>
+            <Space wrap size={4}>
               <Button
                 size="small"
                 icon={<CopyOutlined />}
@@ -409,27 +415,39 @@ export default function WorkerOrdersPage() {
     },
     {
       title: '备注',
-      width: 190,
-      render: (_, row) => (
-        <div className="cell-stack">
-          <Typography.Text
-            type={row.workerNote ? undefined : 'secondary'}
-            ellipsis={{ tooltip: row.workerNote || undefined }}
-          >
-            {row.workerNote || '未填写'}
-          </Typography.Text>
-          <Button size="small" icon={<EditOutlined />} onClick={() => openNoteModal(row)}>
-            编辑备注
-          </Button>
-        </div>
-      ),
+      width: 180,
+      render: (_, row) => {
+        const note = String(row.workerNote || '').trim()
+        return (
+          <div className="worker-note-cell">
+            {note ? (
+              <div className="worker-note-badge" onClick={() => openNoteModal(row)}>
+                <span className="worker-note-text" title={note}>
+                  {note}
+                </span>
+                <EditOutlined className="worker-note-edit-icon" />
+              </div>
+            ) : (
+              <Button
+                type="dashed"
+                size="small"
+                icon={<EditOutlined />}
+                className="worker-note-add-btn"
+                onClick={() => openNoteModal(row)}
+              >
+                添加备注
+              </Button>
+            )}
+          </div>
+        )
+      },
     },
     {
       title: '操作',
-      width: 190,
+      width: 150,
       render: (_, row) => (
         <div className="worker-order-actions">
-          <Space size={8}>
+          <Space size={6}>
             <Tooltip title="查看详情">
               <Button
                 aria-label="查看详情"
@@ -659,43 +677,45 @@ export default function WorkerOrdersPage() {
 
             <Card title="验收信息" size="small">
               <div className="worker-order-detail-stack">
-                <Descriptions column={{ xs: 1, md: 2 }} bordered size="small">
-                  <Descriptions.Item label="验收图片数量">
-                    {getAcceptanceFiles(detailOrder).length +
-                      getAcceptanceImageUrls(detailOrder).length || 0}
-                  </Descriptions.Item>
-                  <Descriptions.Item label="提交时间">
-                    {formatDateTime(getAcceptanceSubmittedAt(detailOrder))}
-                  </Descriptions.Item>
-                  <Descriptions.Item label="验收说明" span={2}>
-                    <span className="worker-order-detail-value">
-                      {String(getWorkerAcceptance(detailOrder).note || '').trim() || '-'}
-                    </span>
-                  </Descriptions.Item>
-                </Descriptions>
-                {getAcceptanceFiles(detailOrder).length ||
-                getAcceptanceImageUrls(detailOrder).length ? (
-                  <ImagePreviewList
-                    files={getAcceptanceFiles(detailOrder)}
-                    imageUrls={getAcceptanceImageUrls(detailOrder)}
-                    size={76}
-                  />
-                ) : (
-                  <Typography.Text type="secondary">暂无验收图片</Typography.Text>
-                )}
-                {!hasSubmittedAcceptance(detailOrder) &&
-                (getDraftFiles(detailOrder).length || getDraftImageUrls(detailOrder).length) ? (
-                  <>
-                    <Typography.Text type="secondary">
-                      已暂存 {getDraftFiles(detailOrder).length + getDraftImageUrls(detailOrder).length} 张图片（未提交，刷新不丢失）
-                    </Typography.Text>
-                    <ImagePreviewList
-                      files={getDraftFiles(detailOrder)}
-                      imageUrls={getDraftImageUrls(detailOrder)}
-                      size={76}
-                    />
-                  </>
-                ) : null}
+                {(() => {
+                  const acceptanceFiles = getUniqueAcceptanceFiles(getWorkerAcceptance(detailOrder))
+                  const draftFiles = getUniqueAcceptanceFiles(getWorkerDraft(detailOrder))
+                  const hasAcceptance = acceptanceFiles.length > 0
+                  const hasDraft = draftFiles.length > 0 && !hasSubmittedAcceptance(detailOrder)
+
+                  return (
+                    <>
+                      <Descriptions column={{ xs: 1, md: 2 }} bordered size="small">
+                        <Descriptions.Item label="验收图片数量">
+                          {acceptanceFiles.length}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="提交时间">
+                          {formatDateTime(getAcceptanceSubmittedAt(detailOrder))}
+                        </Descriptions.Item>
+                        <Descriptions.Item label="验收说明" span={2}>
+                          <span className="worker-order-detail-value">
+                            {String(getWorkerAcceptance(detailOrder)?.note || '').trim() || '-'}
+                          </span>
+                        </Descriptions.Item>
+                      </Descriptions>
+
+                      {hasAcceptance ? (
+                        <ImagePreviewList files={acceptanceFiles} size={76} />
+                      ) : (
+                        <Typography.Text type="secondary">暂无已提交验收图片</Typography.Text>
+                      )}
+
+                      {hasDraft ? (
+                        <div className="acceptance-draft-badge-wrap" style={{ marginTop: 8 }}>
+                          <Tag color="processing" icon={<PictureOutlined />}>
+                            已暂存 {draftFiles.length} 张图片（未提交，刷新不丢失）
+                          </Tag>
+                          <ImagePreviewList files={draftFiles} size={76} />
+                        </div>
+                      ) : null}
+                    </>
+                  )
+                })()}
               </div>
             </Card>
 
@@ -713,6 +733,7 @@ export default function WorkerOrdersPage() {
       <Modal
         title={`订单备注 · ${noteOrder?.workOrderNo || ''}`}
         open={Boolean(noteOrder)}
+        width={460}
         onCancel={() => {
           setNoteOrder(null)
           noteForm.resetFields()
@@ -721,10 +742,26 @@ export default function WorkerOrdersPage() {
         destroyOnHidden
       >
         <Form form={noteForm} layout="vertical" onFinish={saveOrderNote}>
-          <Form.Item label="备注" name="note">
-            <AutoComplete options={[{ value: '已安排' }, { value: '未安排' }]}>
-              <Input allowClear maxLength={100} placeholder="输入备注或选择状态" />
-            </AutoComplete>
+          <Form.Item label="快捷选择标签" style={{ marginBottom: 12 }}>
+            <div className="worker-note-preset-tags">
+              {['已安排', '未安排', '打单中', '账号问题', '排队中', '暂缓做单'].map((tag) => (
+                <Tag
+                  key={tag}
+                  className="worker-note-preset-tag"
+                  onClick={() => noteForm.setFieldsValue({ note: tag })}
+                >
+                  {tag}
+                </Tag>
+              ))}
+            </div>
+          </Form.Item>
+          <Form.Item label="备注内容" name="note">
+            <Input.TextArea
+              rows={3}
+              maxLength={100}
+              showCount
+              placeholder="请输入备注说明（如：已联系买家、账号异常中等）"
+            />
           </Form.Item>
         </Form>
       </Modal>
@@ -949,21 +986,25 @@ function renderDetailFieldValues(items: DetailFieldItem[], emptyText: string) {
 }
 
 /** 打手自己的验收资料（拼单时取份额自己的） */
-function getWorkerAcceptance(order: WorkOrder): WorkerAcceptance {
+function getWorkerAcceptance(order: WorkOrder | null | undefined): WorkerAcceptance | undefined {
+  if (!order) return undefined
   return order.myShare ? order.myShare.acceptance : order.acceptance
 }
 
 /** 打手自己的暂存草稿（拼单时取份额自己的） */
-function getWorkerDraft(order: WorkOrder): WorkerAcceptance {
+function getWorkerDraft(order: WorkOrder | null | undefined): WorkerAcceptance | undefined {
+  if (!order) return undefined
   return order.myShare?.draftAcceptance || order.draftAcceptance
 }
 
-function getAcceptanceFilesFromSource(source: WorkerAcceptance): UploadedFile[] {
-  return Array.isArray(source.files) ? source.files : []
+function getAcceptanceFilesFromSource(source?: WorkerAcceptance | null): UploadedFile[] {
+  if (!source || !Array.isArray(source.files)) return []
+  return source.files
 }
 
 /** 合并草稿兼容字段，并按固定图片地址去重，避免同一图片重复回填。 */
-function getUniqueAcceptanceFiles(source: WorkerAcceptance): UploadedFile[] {
+function getUniqueAcceptanceFiles(source?: WorkerAcceptance | null): UploadedFile[] {
+  if (!source) return []
   const files = [
     ...getAcceptanceFilesFromSource(source),
     ...(Array.isArray(source.imageUrls) ? source.imageUrls : []).map(
@@ -980,26 +1021,19 @@ function getUniqueAcceptanceFiles(source: WorkerAcceptance): UploadedFile[] {
   ]
   const identities = new Set<string>()
   return files.filter((file) => {
-    const identity = getImageIdentity(file.url || file.mediumUrl || file.thumbnailUrl || file.objectKey)
+    const identity = getImageIdentity(file)
     if (!identity || identities.has(identity)) return false
     identities.add(identity)
     return true
   })
 }
 
-/** 去除临时签名参数，确保同一个对象的不同访问链接能匹配。 */
-function getImageIdentity(value: string): string {
-  const url = String(value || '').trim()
-  if (!url) return ''
-  return url.split(/[?#]/, 1)[0]
-}
-
 function getAcceptanceFiles(row: WorkOrder): UploadedFile[] {
   return getAcceptanceFilesFromSource(getWorkerAcceptance(row))
 }
 
 function getAcceptanceImageUrls(row: WorkOrder): string[] {
-  const imageUrls = getWorkerAcceptance(row).imageUrls
+  const imageUrls = getWorkerAcceptance(row)?.imageUrls
   return Array.isArray(imageUrls)
     ? imageUrls.map((item) => String(item || '').trim()).filter(Boolean)
     : []
@@ -1010,7 +1044,7 @@ function getDraftFiles(row: WorkOrder): UploadedFile[] {
 }
 
 function getDraftImageUrls(row: WorkOrder): string[] {
-  const imageUrls = getWorkerDraft(row).imageUrls
+  const imageUrls = getWorkerDraft(row)?.imageUrls
   return Array.isArray(imageUrls)
     ? imageUrls.map((item) => String(item || '').trim()).filter(Boolean)
     : []
diff --git a/apps/frontend/src/styles/main.css b/apps/frontend/src/styles/main.css
index 57140f55..2ee7581a 100644
--- a/apps/frontend/src/styles/main.css
+++ b/apps/frontend/src/styles/main.css
@@ -1540,6 +1540,92 @@ select {
   margin-bottom: 12px;
 }
 
+.acceptance-draft-badge-wrap {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+  gap: 6px;
+}
+
+.acceptance-draft-badge-wrap .ant-tag {
+  margin-inline-end: 0;
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.worker-note-cell {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  min-width: 0;
+}
+
+.worker-note-badge {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  max-width: 100%;
+  padding: 3px 8px;
+  background: #f6f8fa;
+  border: 1px solid #d0d7de;
+  border-radius: 6px;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  font-size: 12px;
+  color: #24292f;
+}
+
+.worker-note-badge:hover {
+  background: #e6f4ff;
+  border-color: #91caff;
+  color: #0958d9;
+}
+
+.worker-note-text {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  max-width: 110px;
+}
+
+.worker-note-edit-icon {
+  font-size: 12px;
+  color: #8c8c8c;
+  transition: color 0.2s;
+}
+
+.worker-note-badge:hover .worker-note-edit-icon {
+  color: #0958d9;
+}
+
+.worker-note-add-btn {
+  border-style: dashed;
+  color: #595959;
+  font-size: 12px;
+}
+
+.worker-note-preset-tags {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.worker-note-preset-tag {
+  cursor: pointer;
+  user-select: none;
+  padding: 2px 10px;
+  border-radius: 4px;
+  transition: all 0.2s ease;
+}
+
+.worker-note-preset-tag:hover {
+  border-color: #1677ff;
+  color: #1677ff;
+  background: #e6f4ff;
+}
+
+
 .metric-grid {
   display: grid;
   gap: 12px;
diff --git a/apps/frontend/src/utils/image-identity.ts b/apps/frontend/src/utils/image-identity.ts
new file mode 100644
index 00000000..2ba2850b
--- /dev/null
+++ b/apps/frontend/src/utils/image-identity.ts
@@ -0,0 +1,54 @@
+import type { UploadedFile } from '@/types/worker-platform'
+
+/**
+ * 归一化图片身份标识，用于跨来源去重（files 与 imageUrls 可能同时包含同一张图）。
+ *
+ * 本项目的图片地址有两种形态：
+ * - 对象存储签名链接：`/api/v1/files/object?key=<objectKey>&expires=...&signature=...`
+ *   （对象 key 在 query 里，路径对所有文件相同，不能只取路径）
+ * - 普通外链：`https://cdn.example.com/a.png`
+ *
+ * 优先级：objectKey 字段 > URL 中的 key 参数 > 去掉临时签名参数后的完整地址。
+ */
+export function getImageIdentity(file: {
+  objectKey?: string
+  url?: string
+  mediumUrl?: string
+  thumbnailUrl?: string
+}): string {
+  const objectKey = String(file?.objectKey || '').trim()
+  if (objectKey) return objectKey
+  const url = String(
+    file?.url || file?.mediumUrl || file?.thumbnailUrl || '',
+  ).trim()
+  return getImageIdentityFromUrl(url)
+}
+
+export function getImageIdentityFromUrl(value: string): string {
+  const url = String(value || '').trim()
+  if (!url) return ''
+  const keyMatch = url.match(/[?&]key=([^&#]+)/)
+  if (keyMatch?.[1]) {
+    try {
+      return decodeURIComponent(keyMatch[1])
+    } catch {
+      return keyMatch[1]
+    }
+  }
+  // 普通地址：仅去掉临时签名参数（expires/signature），保留路径与其它参数
+  return url
+    .split('#', 1)[0]
+    .replace(/[?&](expires|signature)=[^&#]*/gi, '')
+    .replace(/[?&]+$/, '')
+}
+
+/** 供 UploadedFile 数组去重：按图片身份去重，保留第一张 */
+export function uniqueUploadedFiles(files: UploadedFile[]): UploadedFile[] {
+  const seen = new Set<string>()
+  return files.filter((file) => {
+    const identity = getImageIdentity(file)
+    if (!identity || seen.has(identity)) return false
+    seen.add(identity)
+    return true
+  })
+}