refactor(agent): 优化 DynamicForm 组件

- 移除了颜色选择器组件
- 调整了表单字段的渲染逻辑

src/views/agent/work-flow/components/DynamicForm.vue

@@ -21,9 +21,7 @@
           v-model="formData[field.props.name]"
           :placeholder="field?.props?.placeholder"
         />
-        <a-color-picker    v-if="field.type === 'color_picker'"
-                              style="width: 500px; height: 200px"
-                              v-model="formData[field.props.name]" />
+
         <ImageUpload
           v-if="field.type == 'upload_image'"
           v-model="formData[field.props.name]"