diff --git a/apps/web/vue3/index_ml.html b/apps/web/vue3/index_ml.html
index 8936729a6..ef98e8dcd 100644
--- a/apps/web/vue3/index_ml.html
+++ b/apps/web/vue3/index_ml.html
@@ -999,6 +999,10 @@
             padding: 10px;
         }
 
+        .execution-log-item.assistant .log-content.structured-content {
+            font-size: 13px;
+        }
+
         .execution-log-item.assistant .log-content.short-content {
             font-size: 13px;
         }
@@ -1366,11 +1370,13 @@
 
                     <el-divider style="margin: 12px 0;"></el-divider>
 
-                    <div style="padding:10px; background:#fff; border:1px solid #dcdfe6; border-radius:0px;">
+                    <div @dragover.prevent @drop.prevent="handleLightweightExtensionFolderDrop($event)"
+                        style="padding:10px; background:#fff; border:1px dashed #409EFF; border-radius:0px;">
                         <div style="display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:8px;">
                             <el-tooltip content="上传已跑通过的代码和测试数据；执行通过自然语言触发。" placement="top">
                                 <h4 style="margin:0; color:#303133; cursor:help;">{{ t('拓展分析阶段') }}</h4>
                             </el-tooltip>
+                            <el-button size="small" @click="loadExtensionRuns(); extensionResultDialogVisible = true">{{ t('运行结果') }}</el-button>
                         </div>
                         <div style="display:grid; grid-template-columns:72px 1fr; gap:7px; align-items:center; font-size:12px;">
                             <span>{{ t('已写阶段') }}</span>
@@ -1431,7 +1437,6 @@
                             <el-button v-if="isLightweightExtensionSelected" size="small" type="success" @click="openLightweightRuntimeCard()">
                                 {{ t('运行已发布') }}
                             </el-button>
-                            <el-button size="small" @click="loadExtensionRuns(); extensionResultDialogVisible = true">{{ t('运行结果') }}</el-button>
                         </div>
                     </div>
 
@@ -1780,6 +1785,20 @@
                             📂 Select
                         </el-button>
                     </div>
+                    <!-- lightWeightExtensionTest:start -->
+                    <div id="lightweight-extension-test-drop-zone"
+                        style="display:none;margin-top:8px;border:1px dashed #409EFF;padding:10px;font-size:12px;color:#606266;background:#f8fbff;"
+                         @dragover.prevent
+                         @drop.prevent="handleLightweightExtensionFolderDrop($event)">
+                        <div style="font-weight:600;color:#303133;">拖入固定结构拓展包</div>
+                        <div style="margin-top:4px;line-height:1.5;">要求包含 raw_code/run.sh 与 raw_test_data/，系统会自动创建 Job、解析环境并开始 lightweight upload。</div>
+                        <input id="lightweight-extension-test-folder-input" type="file" webkitdirectory directory multiple style="display:none" @change="handleLightweightExtensionFolderPick($event)">
+                        <div style="display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:8px;">
+                            <span>{{ lightweightExtensionTestStatus }}</span>
+                            <el-button size="small" type="success" @click="openLightweightExtensionFolderPicker">选择文件夹</el-button>
+                        </div>
+                    </div>
+                    <!-- lightWeightExtensionTest:end -->
                 </div>
             </div>
 
@@ -7825,6 +7844,7 @@ RNA-seq KEGG/fgsea 会优先使用物种级 KEGG gene set；没有物种级缓
                 });
                 const activeRnaseqScopeId = ref('');
                 const activeGenotypeScopeId = ref('');
+                const lightweightExtensionTestStatus = ref('拖入固定结构文件夹，系统将自动创建 Job、解析环境并开始 upload。');
 
                 // 对话消息
                 const messages = ref([]);
@@ -19304,6 +19324,10 @@ compare: [[flesh, peel]]`;
                 };
 
                 const extensionFileKey = (file) => `${file?.name || ''}::${file?.size || 0}::${file?.lastModified || 0}`;
+                const extensionUploadPath = (file) => {
+                    const relative = String(file?.lightweightRelativePath || '').trim().replace(/^\/+/, '');
+                    return relative || String(file?.name || '').trim();
+                };
                 const appendExtensionFiles = (target, files) => {
                     const current = Array.isArray(target) ? target : [];
                     const merged = [...current];
@@ -19329,6 +19353,53 @@ compare: [[flesh, peel]]`;
                     if (selected.length) ElMessage.success(`已选择 ${selected.length} 个测试数据文件`);
                     event.target.value = '';
                 };
+                const handleLightweightExtensionFolderDrop = (event) => {
+                    const droppedFiles = Array.from(event?.dataTransfer?.files || []);
+                    if (!droppedFiles.length) {
+                        ElMessage.warning('未检测到可用文件');
+                        return;
+                    }
+
+                    const codeExtPattern = /\.(py|r|sh|bash|pl|js|ts|java|c|cc|cpp|go|rs|jl|rb|m|smk|nf|ipynb)$/i;
+                    const dataExtPattern = /\.(fastq|fq|gz|fa|fasta|fna|faa|pep|cds|gff|gff3|gtf|csv|tsv|txt|xlsx|xls|vcf|sam|bam)$/i;
+
+                    const normalized = droppedFiles.map((file) => {
+                        const relativePath = file.webkitRelativePath || file.name;
+                        if (!file.lightweightRelativePath) {
+                            Object.defineProperty(file, 'lightweightRelativePath', {
+                                value: relativePath,
+                                configurable: true
+                            });
+                        }
+                        return file;
+                    });
+
+                    const codeFiles = [];
+                    const dataFiles = [];
+                    normalized.forEach((file) => {
+                        const filePath = extensionUploadPath(file).toLowerCase();
+                        if (codeExtPattern.test(filePath)) {
+                            codeFiles.push(file);
+                        } else if (dataExtPattern.test(filePath)) {
+                            dataFiles.push(file);
+                        } else {
+                            codeFiles.push(file);
+                        }
+                    });
+
+                    extensionBuild.codeFiles = appendExtensionFiles(extensionBuild.codeFiles, codeFiles);
+                    extensionBuild.dataFiles = appendExtensionFiles(extensionBuild.dataFiles, dataFiles);
+
+                    if (!extensionBuild.displayName) {
+                        const firstPath = normalized[0]?.webkitRelativePath || normalized[0]?.name || '';
+                        const folder = firstPath.includes('/') ? firstPath.split('/')[0] : '';
+                        if (folder) {
+                            extensionBuild.displayName = folder.replace(/[^a-zA-Z0-9_-]+/g, '_');
+                        }
+                    }
+
+                    ElMessage.success(`已拖入 ${normalized.length} 个文件，已自动填充拓展包`);
+                };
                 const removeExtensionFile = (kind, file) => {
                     const key = extensionFileKey(file);
                     if (kind === 'code') {
@@ -19363,7 +19434,7 @@ compare: [[flesh, peel]]`;
                     const value = String(path || '');
                     if (!value.startsWith('/api/extension-stages') && !value.startsWith('/api/extension-stage-runs')) return value;
                     const host = window.location.hostname || '127.0.0.1';
-                    return `${window.location.protocol}//${host}:7880${value}`;
+                    return `${window.location.protocol}//${host}:${window.location.port}${value}`;
                 };
                 const extensionApiFetch = async (path, options = {}) => fetch(extensionApiUrl(path), options);
                 const pushExtensionStatus = (message, type = 'info', showDialog = false) => {
@@ -19724,8 +19795,8 @@ compare: [[flesh, peel]]`;
                         form.append('extension_id', extensionId);
                         if (hasCommand) form.append('original_command', extensionBuild.command);
                         form.append('operation_token', token);
-                        extensionBuild.codeFiles.forEach(file => form.append('raw_code_files', file));
-                        extensionBuild.dataFiles.forEach(file => form.append('raw_data_files', file));
+                        extensionBuild.codeFiles.forEach(file => form.append('raw_code_files', file, extensionUploadPath(file)));
+                        extensionBuild.dataFiles.forEach(file => form.append('raw_data_files', file, extensionUploadPath(file)));
                         if (hasDataPaths) form.append('raw_data_paths', extensionBuild.dataPaths);
                         const response = await extensionApiFetch('/api/lightweight-extension-stages/upload', { method: 'POST', body: form });
                         if (!response.ok) throw new Error(await extensionApiError(response, '原始包可复现检查提交失败'));
@@ -22289,7 +22360,7 @@ compare: [[flesh, peel]]`;
                             addMessage('user', userInput);
                             ragHistory.value.push({ role: 'user', content: userInput, time: new Date().toLocaleTimeString() });
 
-                            // 调用当前 bbav5 后端 RAG 代理，随页面端口走同源地址（例如 7880）
+                            // 调用当前 bbav5 后端 RAG 代理，随页面端口走同源地址
                             const data = await fetchJsonWithTimeout('/api/agent/rag', {
                                 method: 'POST',
                                 headers: { 'Content-Type': 'application/json' },
@@ -23523,6 +23594,25 @@ compare: [[flesh, peel]]`;
                     runExtensionStageFromIntent,
                     extensionOutputIcon,
                     openExtensionOutput,
+                    // lightWeightExtensionTest
+                    lightweightExtensionTestStatus,
+                    handleLightweightExtensionFolderDrop: (event) => window.LightWeightExtensionTest && window.LightWeightExtensionTest.handleDrop({
+                        jobInfo,
+                        extensionBuild,
+                        createNewJob,
+                        appendExtensionFiles,
+                        buildLightweightExtensionStage,
+                        lightweightExtensionTestStatus,
+                    }, event),
+                    handleLightweightExtensionFolderPick: (event) => window.LightWeightExtensionTest && window.LightWeightExtensionTest.handlePick({
+                        jobInfo,
+                        extensionBuild,
+                        createNewJob,
+                        appendExtensionFiles,
+                        buildLightweightExtensionStage,
+                        lightweightExtensionTestStatus,
+                    }, event),
+                    openLightweightExtensionFolderPicker: () => window.LightWeightExtensionTest && window.LightWeightExtensionTest.openPicker(),
                     methodologyPaperId,
                     methodologyFamily,
                     methodologyBatchDir,
@@ -23761,6 +23851,9 @@ compare: [[flesh, peel]]`;
         document.getElementById('app').style.display = 'block';
         console.log('App mounted successfully');
     </script>
+    <!-- lightWeightExtensionTest:wiring:start -->
+    <script src="/lightWeightExtensionTest.js"></script>
+    <!-- lightWeightExtensionTest:wiring:end -->
     <!-- 深度解读弹窗样式 -->
     <style>
         .interpretation-dialog .el-dialog__body { padding: 0; max-height: 70vh; overflow-y: auto; }