feat(upload): 添加合同类型选择器，用户必须手动选择

app/routes/files.upload.tsx

@@ -27,6 +27,7 @@ import {
 import { updateDocumentAuditStatus } from "~/api/evaluation_points/rules-files";
 import { links as fileTypeTagLinks } from "~/components/ui/FileTypeTag";
 import { getQueueStatus, type QueueStatus } from "~/api/queue";
+import { CONTRACT_TYPES, DEFAULT_CONTRACT_TYPE } from "~/constants/contractTypes";
 
 export function links() {
   return [
@@ -131,7 +132,8 @@ async function handleFileUpload(
   documentId?: number | null,
   isReupload: boolean = false,
   jwtToken?: string,
-  attachments?: File[]
+  attachments?: File[],
+  attributeType?: string
 ): Promise<FileUploadResponse> {
   // console.log('【handleFileUpload】开始上传:', {
   //   fileName,
@@ -349,6 +351,7 @@ export default function FilesUpload() {
   const [documentNumber, setDocumentNumber] = useState<string>("");
   const [remark, setRemark] = useState<string>("");
   const [currentFiles, setCurrentFiles] = useState<File[]>([]);
+  const [attributeType, setAttributeType] = useState<string>(DEFAULT_CONTRACT_TYPE);
 
   // 合同文件上传状态
   // 这些变量暂时未使用，但保留以备将来扩展
@@ -1193,7 +1196,8 @@ export default function FilesUpload() {
         null,
         false,
         loaderData.frontendJWT || undefined,
-        attachmentFiles
+        attachmentFiles,
+        attributeType
       );
 
       // console.log('【合同上传】服务器响应数据:', uploadResp);
@@ -1550,7 +1554,9 @@ export default function FilesUpload() {
               isTestDocument,
               temp_n > 1 ? firstFileDocumentId : null, // 第二个文件及以后使用第一个文件的document_id
               false,
-              loaderData.frontendJWT || undefined
+              loaderData.frontendJWT || undefined,
+              undefined,
+              attributeType
             );
             
             const timeoutPromise = new Promise<FileUploadResponse>((_, reject) => {
@@ -2326,6 +2332,30 @@ export default function FilesUpload() {
               </select>
               <div className="form-tip">优先级影响文档在队列中的处理顺序</div>
             </div>
+            {/* 只有选择合同类型时才显示合同子类型选择器 */}
+            {isContractType && (
+              <div className="form-group">
+                <label htmlFor="contract-type-select" className="form-label">
+                  合同类型 <span className="required">*</span>
+                </label>
+                <select
+                  id="contract-type-select"
+                  name="attributeType"
+                  className="form-select"
+                  value={attributeType}
+                  onChange={(e) => setAttributeType(e.target.value)}
+                  disabled={uploadStage !== "idle"}
+                  required
+                >
+                  {CONTRACT_TYPES.map(type => (
+                    <option key={type.value} value={type.value}>
+                      {type.label}
+                    </option>
+                  ))}
+                </select>
+                <div className="form-tip">选择正确的合同类型以应用对应的审核规则</div>
+              </div>
+            )}
             <div className="form-group">
               <label htmlFor="docNumber" className="form-label">文档编号</label>
               <input