feat(orderTrack): add contract signing status filter and display in goods detail component

- Introduced a new filter for contract signing status in the form, allowing users to select between "待签署" and "已签署".
- Added a new column to the table to display the electronic contract signing status.
- Updated the data model to include the new signing status property for better tracking and management.

src/views/OrderTrack/goods.vue

@@ -35,6 +35,13 @@
                         <el-option label="全部收款" value="3"></el-option>
                     </el-select>
                 </el-form-item>
+                <el-form-item label="合同签署状态" prop="sign_status">
+                    <el-select v-model="formInline.sign_status" placeholder="请选择">
+                        <el-option label="全部" value=""></el-option>
+                        <el-option label="待签署" value="2"></el-option>
+                        <el-option label="已签署" value="3"></el-option>
+                    </el-select>
+                </el-form-item>
                 <el-form-item label="报价单号" prop="quote_sn">
                     <el-input v-model="formInline.quote_sn" placeholder="请输入报价单号" @keyup.enter.native="submit" style="width: 193px;"></el-input>
                 </el-form-item>
@@ -125,6 +132,7 @@
                             <a class="alink" v-if="scope.row.shipping_status_val == '全部发货'" :href="'/#/orderTrackInvoice?purchase_id=' + scope.row.purchase_id">{{ scope.row.shipping_status_val }}</a>
                         </template>
                     </el-table-column>
+                    <el-table-column prop="sign_status_val" label="电子合同签署状态" width="120" align="center"></el-table-column>
                     <el-table-column prop="buyer_name" label="订单人员" width="100" align="center">
                         <template slot-scope="scope">
                             <el-popover placement="bottom" title="订单人员" width="200" trigger="hover">
@@ -269,6 +277,7 @@
                     shipping_status: '',
                     status: '',
                     pay_status: '',
+                    sign_status: '',
                     inquiry_sn: '',
                     quote_sn: '',
                     source_type: '',