feat: 优化获取合同信息逻辑，简化按钮状态管理，提升用户体验

src/views/OrderTrack/goodsDetail.vue

@@ -438,17 +438,14 @@ export default {
       this.contract_id = contractItem.contractId;
       this.disabled = true; // 重置按钮状态
       this.signDialogVisible = true;
-      
-      // 等待DOM更新后检查初始滚动状态
-      this.$nextTick(() => {
-        var contractContent = this.$refs.contractContent;
-        if (contractContent) {
-          // 如果内容高度小于等于容器高度，直接启用按钮
-          if (contractContent.scrollHeight <= contractContent.clientHeight) {
-            this.disabled = false;
-          }
+
+      //获取合同信息
+      this.$http('POST', "/api/purContract/getContractInfo", { contract_id: this.contract_id }).then(res => {
+        if (res.code === 0) {
+          this.signContractData = res.data;
         }
-      });
+      })
+
     },
     // 关闭签署合同弹窗
     closeSignDialog() {
@@ -477,7 +474,7 @@ export default {
       if (!this.disabled) {
         return;
       }
-      
+
       var contractContent = this.$refs.contractContent;
       // 检查是否滚动到底部
       if (contractContent.scrollHeight - contractContent.scrollTop === contractContent.clientHeight) {
@@ -493,6 +490,7 @@ export default {
 <style scoped>
 @import "../../assets/css/goods/goods.min.css";
 @import "../../assets/css/public/contract.css";
+
 .el-button--primary.is-disabled,
 .el-button--primary.is-disabled:active,
 .el-button--primary.is-disabled:focus,