【增加】dataset 创建选择数据源页面

src/views/knowledge/dataset-form/form-step1.vue

+<template>
+  <div class="upload-container">
+    <!-- 标题 -->
+    <div class="title">
+      <div>选择数据源</div>
+    </div>
+
+    <!-- 数据源选择 -->
+    <div class="resource-btn" >导入已有文本</div>
+
+    <!-- 上传文件区域 -->
+    <el-form>
+      <div class="upload-section">
+        <div class="upload-label">上传文本文件</div>
+        <el-upload
+          class="upload-area"
+          action="#"
+          :file-list="fileList"
+          :on-remove="handleRemove"
+          :before-upload="beforeUpload"
+          list-type="text"
+          drag
+        >
+          <i class="el-icon-upload"></i>
+          <div class="el-upload__text">拖拽文件至此，或者 <em>选择文件</em></div>
+          <div class="el-upload__tip">
+            已支持 TXT、MARKDOWN、PDF、HTML、XLSX、XLS、DOCX、CSV、EML、MSG、PPTX、PPT、XML、EPUB，每个文件不超过 15MB。
+          </div>
+        </el-upload>
+      </div>
+
+      <!-- 下一步按钮 -->
+      <div class="next-button">
+        <el-button type="primary" :disabled="!fileList.length">下一步</el-button>
+      </div>
+    </el-form>
+
+    <!-- 知识库创建 -->
+    <div class="create-knowledge">
+      <el-link type="primary" underline>创建一个空知识库</el-link>
+    </div>
+  </div>
+</template>
+
+<script setup>
+import { ref } from 'vue'
+
+const fileList = ref([])
+
+const handleRemove = (file, fileList) => {
+  console.log(file, fileList)
+}
+
+const beforeUpload = (file) => {
+  fileList.value.push(file)
+  return false
+}
+</script>
+
+<style scoped lang="scss">
+.upload-container {
+  width: 600px;
+  margin: 0 auto;
+  padding: 20px;
+  background-color: #fff;
+  border-radius: 8px;
+  border: 1px solid #ebebeb;
+}
+
+.title {
+  font-size: 22px;
+  font-weight: bold;
+}
+
+.resource-btn {
+  margin-top: 20px;
+  border-radius: 10px;
+  cursor: pointer;
+  width: 150px;
+  border: 1.5px solid #528bff;
+  padding: 10px;
+  text-align: center;
+  font-weight: 500;
+  font-size: 14px;
+  line-height: 30px;
+  color: #101828;
+}
+
+.upload-section {
+  margin: 20px 0;
+  padding-top: 10px;
+}
+
+.upload-label {
+  font-size: 16px;
+  font-weight: bold;
+  margin-bottom: 10px;
+  color: #303133;
+}
+
+.upload-area {
+  margin-top: 10px;
+  border: 1px dashed #d9d9d9;
+  padding: 40px;
+  text-align: center;
+  background-color: #f5f7fa;
+  border-radius: 8px;
+}
+
+.el-upload__text em {
+  color: #409eff;
+  cursor: pointer;
+}
+
+.el-upload__tip {
+  margin-top: 10px;
+  font-size: 12px;
+  color: #909399;
+}
+
+.next-button {
+  text-align: left;
+  margin-top: 20px;
+}
+
+.create-knowledge {
+  text-align: left;
+  margin-top: 20px;
+}
+
+.el-form-item {
+  margin-bottom: 0;
+}
+
+.source-radio-group {
+  display: flex;
+  justify-content: space-between;
+}
+
+.el-radio-button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 14px;
+  padding: 10px 20px;
+}
+
+.el-radio-button .el-icon {
+  margin-right: 8px;
+}
+</style>