feat(ssa): Complete T-test end-to-end testing with 9 bug fixes - Phase 1 core 85% complete. R service: missing value auto-filter. Backend: error handling, variable matching, dynamic filename. Frontend: module activation, session isolation, error propagation. Full flow verified.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend-v2/src/modules/aia/styles/chat-workspace.css

@@ -997,9 +997,7 @@
 
 .message-bubble .markdown-content ul {
   list-style-type: disc;
-}
-
-.message-bubble .markdown-content ol {
+}.message-bubble .markdown-content ol {
   list-style-type: decimal;
 }.message-bubble .markdown-content li {
   margin: 6px 0;
@@ -1017,13 +1015,11 @@
 .message-bubble .markdown-content em {
   font-style: italic;
   color: #4B5563;
-}
-
-.message-bubble .markdown-content code {
+}.message-bubble .markdown-content code {
   background: rgba(79, 110, 242, 0.1);
   color: #4F6EF2;
   padding: 2px 6px;
   border-radius: 4px;
   font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
   font-size: 0.9em;
-}
+}

frontend-v2/src/modules/ssa/components/APATable.tsx

@@ -0,0 +1,130 @@
+/**
+ * APA 格式统计结果表格
+ */
+import React from 'react';
+import { Table, Typography, Empty } from 'antd';
+
+const { Text } = Typography;
+
+interface APATableProps {
+  result: any;
+}
+
+const formatPValue = (p: number | undefined): string => {
+  if (p === undefined || p === null) return '-';
+  if (p < 0.001) return '< .001';
+  if (p < 0.01) return p.toFixed(3).replace('0.', '.');
+  return p.toFixed(2).replace('0.', '.');
+};
+
+const formatStatistic = (value: number | undefined): string => {
+  if (value === undefined || value === null) return '-';
+  return value.toFixed(2);
+};
+
+const APATable: React.FC<APATableProps> = ({ result }) => {
+  // 处理空数据
+  if (!result || Object.keys(result).length === 0) {
+    return <Empty description="暂无统计结果" />;
+  }
+  
+  // 兼容 camelCase 和 snake_case
+  const method = result.method || '统计分析';
+  const statistic = result.statistic;
+  const pValue = result.pValue ?? result.p_value;
+  const effectSize = result.effectSize ?? result.effect_size;
+  const ci = result.ci ?? result.conf_int;
+  const columns = [
+    {
+      title: '统计量',
+      dataIndex: 'label',
+      key: 'label',
+      width: 150,
+    },
+    {
+      title: '值',
+      dataIndex: 'value',
+      key: 'value',
+      render: (val: string | number) => (
+        <Text strong>{val}</Text>
+      ),
+    },
+  ];
+
+  const dataSource: any[] = [
+    { key: 'method', label: '分析方法', value: method },
+  ];
+  
+  // 添加统计量（如果有）
+  if (statistic !== undefined) {
+    dataSource.push({
+      key: 'statistic',
+      label: '检验统计量',
+      value: formatStatistic(statistic),
+    });
+  }
+  
+  // 添加 p 值（如果有）
+  if (pValue !== undefined) {
+    dataSource.push({
+      key: 'pValue',
+      label: 'p 值',
+      value: (
+        <Text
+          type={pValue < 0.05 ? 'success' : 'secondary'}
+          strong={pValue < 0.05}
+        >
+          {formatPValue(pValue)}
+          {pValue < 0.05 && ' *'}
+          {pValue < 0.01 && '*'}
+          {pValue < 0.001 && '*'}
+        </Text>
+      ),
+    });
+  }
+
+  if (effectSize !== undefined) {
+    dataSource.push({
+      key: 'effectSize',
+      label: '效应量',
+      value: effectSize.toFixed(3),
+    });
+  }
+
+  if (ci && Array.isArray(ci) && ci.length >= 2) {
+    dataSource.push({
+      key: 'ci',
+      label: '95% 置信区间',
+      value: `[${ci[0].toFixed(2)}, ${ci[1].toFixed(2)}]`,
+    });
+  }
+
+  // 其他详细信息
+  const details = result.details || result.group_stats;
+  if (details && typeof details === 'object') {
+    Object.entries(details).forEach(([key, value]) => {
+      if (typeof value === 'number') {
+        dataSource.push({
+          key,
+          label: key,
+          value: value.toFixed(3),
+        });
+      } else if (typeof value === 'string') {
+        dataSource.push({ key, label: key, value });
+      }
+    });
+  }
+
+  return (
+    <Table
+      className="ssa-apa-table"
+      columns={columns}
+      dataSource={dataSource}
+      pagination={false}
+      size="small"
+      bordered
+    />
+  );
+};
+
+export default APATable;

frontend-v2/src/modules/ssa/components/ExecutionProgress.tsx

@@ -0,0 +1,42 @@
+/**
+ * 执行进度条组件
+ */
+import React from 'react';
+import { Progress, Space, Typography } from 'antd';
+import type { TraceStep } from '../types';
+
+const { Text } = Typography;
+
+interface ExecutionProgressProps {
+  steps: TraceStep[];
+}
+
+const ExecutionProgress: React.FC<ExecutionProgressProps> = ({ steps }) => {
+  const completedCount = steps.filter(
+    (s) => s.status === 'success' || s.status === 'switched'
+  ).length;
+  const failedCount = steps.filter((s) => s.status === 'failed').length;
+  const total = steps.length;
+  const percent = Math.round((completedCount / total) * 100);
+
+  const currentStep = steps.find((s) => s.status === 'running');
+  const status =
+    failedCount > 0 ? 'exception' : percent === 100 ? 'success' : 'active';
+
+  return (
+    <div className="ssa-execution-progress">
+      <Progress
+        percent={percent}
+        status={status}
+        format={() => `${completedCount}/${total}`}
+      />
+      {currentStep && (
+        <Text type="secondary" style={{ marginTop: 8, display: 'block' }}>
+          正在执行: {currentStep.name}...
+        </Text>
+      )}
+    </div>
+  );
+};
+
+export default ExecutionProgress;

frontend-v2/src/modules/ssa/components/ExecutionTrace.tsx

@@ -0,0 +1,90 @@
+/**
+ * 执行追踪组件 - 显示分析步骤进度
+ */
+import React from 'react';
+import { Steps, Tag } from 'antd';
+import {
+  CheckCircleOutlined,
+  CloseCircleOutlined,
+  LoadingOutlined,
+  SwapOutlined,
+  ExclamationCircleOutlined,
+  ClockCircleOutlined,
+} from '@ant-design/icons';
+import type { TraceStep } from '../types';
+
+interface ExecutionTraceProps {
+  steps: TraceStep[];
+  compact?: boolean;
+}
+
+const getIcon = (step: TraceStep) => {
+  switch (step.status) {
+    case 'success':
+      return <CheckCircleOutlined style={{ color: '#52c41a' }} />;
+    case 'failed':
+      return <CloseCircleOutlined style={{ color: '#ff4d4f' }} />;
+    case 'running':
+      return <LoadingOutlined style={{ color: '#1890ff' }} />;
+    case 'switched':
+      return <SwapOutlined style={{ color: '#722ed1' }} />;
+    default:
+      return <ClockCircleOutlined style={{ color: '#d9d9d9' }} />;
+  }
+};
+
+const getActionTag = (step: TraceStep) => {
+  if (!step.actionType) return null;
+
+  const config = {
+    Block: { color: 'red', icon: <CloseCircleOutlined /> },
+    Warn: { color: 'orange', icon: <ExclamationCircleOutlined /> },
+    Switch: { color: 'purple', icon: <SwapOutlined /> },
+  };
+
+  const tagConfig = config[step.actionType];
+
+  return (
+    <Tag color={tagConfig.color} icon={tagConfig.icon}>
+      {step.actionType}
+      {step.switchTarget && `: ${step.switchTarget}`}
+    </Tag>
+  );
+};
+
+const ExecutionTrace: React.FC<ExecutionTraceProps> = ({
+  steps,
+  compact = false,
+}) => {
+  const currentStep = steps.findIndex(
+    (s) => s.status === 'running' || s.status === 'pending'
+  );
+
+  return (
+    <div className={`ssa-execution-trace ${compact ? 'compact' : ''}`}>
+      <Steps
+        orientation={compact ? 'horizontal' : 'vertical'}
+        size="small"
+        current={currentStep === -1 ? steps.length : currentStep}
+      >
+        {steps.map((step) => (
+          <Steps.Step
+            key={step.index}
+            title={
+              <span className="ssa-trace-title">
+                {step.name}
+                {getActionTag(step)}
+              </span>
+            }
+            description={
+              step.message || (step.durationMs ? `${step.durationMs}ms` : '')
+            }
+            icon={getIcon(step)}
+          />
+        ))}
+      </Steps>
+    </div>
+  );
+};
+
+export default ExecutionTrace;

frontend-v2/src/modules/ssa/components/ModeSwitch.tsx

@@ -0,0 +1,50 @@
+/**
+ * 模式切换组件 - 智能分析 / 咨询模式
+ */
+import React from 'react';
+import { Segmented } from 'antd';
+import { ExperimentOutlined, CommentOutlined } from '@ant-design/icons';
+import { useSSAStore } from '../stores/ssaStore';
+import type { SSAMode } from '../types';
+
+interface ModeSwitchProps {
+  disabled?: boolean;
+}
+
+const ModeSwitch: React.FC<ModeSwitchProps> = ({ disabled = false }) => {
+  const { mode, setMode } = useSSAStore();
+
+  const options = [
+    {
+      value: 'analysis' as SSAMode,
+      label: (
+        <span className="ssa-mode-option">
+          <ExperimentOutlined />
+          <span>智能分析</span>
+        </span>
+      ),
+    },
+    {
+      value: 'consult' as SSAMode,
+      label: (
+        <span className="ssa-mode-option">
+          <CommentOutlined />
+          <span>咨询模式</span>
+        </span>
+      ),
+    },
+  ];
+
+  return (
+    <div className="ssa-mode-switch">
+      <Segmented
+        options={options}
+        value={mode}
+        onChange={(value) => setMode(value as SSAMode)}
+        disabled={disabled}
+      />
+    </div>
+  );
+};
+
+export default ModeSwitch;

frontend-v2/src/modules/ssa/components/PlanCard.tsx

@@ -0,0 +1,105 @@
+/**
+ * 分析计划卡片组件
+ */
+import React from 'react';
+import { Card, Button, Tag, Descriptions, Space, Tooltip } from 'antd';
+import {
+  PlayCircleOutlined,
+  SafetyOutlined,
+  InfoCircleOutlined,
+} from '@ant-design/icons';
+import type { AnalysisPlan, GuardrailConfig } from '../types';
+
+interface PlanCardProps {
+  plan: AnalysisPlan;
+  canExecute: boolean;
+  onExecute: () => void;
+  isExecuting: boolean;
+}
+
+const getActionColor = (action: GuardrailConfig['actionType']) => {
+  switch (action) {
+    case 'Block':
+      return 'red';
+    case 'Warn':
+      return 'orange';
+    case 'Switch':
+      return 'blue';
+    default:
+      return 'default';
+  }
+};
+
+const PlanCard: React.FC<PlanCardProps> = ({
+  plan,
+  canExecute,
+  onExecute,
+  isExecuting,
+}) => {
+  return (
+    <Card
+      className="ssa-plan-card"
+      title={
+        <Space>
+          <span>{plan.toolName}</span>
+          <Tag color="blue">{plan.toolCode}</Tag>
+        </Space>
+      }
+      extra={
+        <Space>
+          <Tag color={plan.confidence > 0.8 ? 'green' : 'orange'}>
+            置信度: {(plan.confidence * 100).toFixed(0)}%
+          </Tag>
+          <Button
+            type="primary"
+            icon={<PlayCircleOutlined />}
+            onClick={onExecute}
+            loading={isExecuting}
+            disabled={!canExecute}
+          >
+            执行分析
+          </Button>
+        </Space>
+      }
+    >
+      <Descriptions column={1} size="small">
+        <Descriptions.Item label="分析描述">
+          {plan.description}
+        </Descriptions.Item>
+        <Descriptions.Item label="参数配置">
+          <pre className="ssa-params-preview">
+            {JSON.stringify(plan.parameters, null, 2)}
+          </pre>
+        </Descriptions.Item>
+      </Descriptions>
+
+      {plan.guardrails && plan.guardrails.length > 0 && (
+        <div className="ssa-guardrails">
+          <div className="ssa-guardrails-title">
+            <SafetyOutlined /> 统计护栏
+          </div>
+          <Space wrap>
+            {plan.guardrails.map((gr, idx) => (
+              <Tooltip
+                key={idx}
+                title={
+                  <span>
+                    检查: {gr.checkCode}
+                    {gr.threshold && ` | 阈值: ${gr.threshold}`}
+                    {gr.actionTarget && ` | 目标: ${gr.actionTarget}`}
+                  </span>
+                }
+              >
+                <Tag color={getActionColor(gr.actionType)}>
+                  {gr.checkName} ({gr.actionType})
+                </Tag>
+              </Tooltip>
+            ))}
+          </Space>
+        </div>
+      )}
+    </Card>
+  );
+};
+
+export default PlanCard;

frontend-v2/src/modules/ssa/components/ResultCard.tsx

@@ -0,0 +1,177 @@
+/**
+ * 结果展示卡片组件
+ */
+import React, { useState } from 'react';
+import { Card, Tabs, Button, Space, message, Alert, Typography } from 'antd';
+import {
+  DownloadOutlined,
+  CopyOutlined,
+  BarChartOutlined,
+  FileTextOutlined,
+  CodeOutlined,
+} from '@ant-design/icons';
+import type { ExecutionResult } from '../types';
+import APATable from './APATable';
+
+const { Text } = Typography;
+
+interface ResultCardProps {
+  result: ExecutionResult;
+  onDownloadCode: () => void;
+}
+
+const ResultCard: React.FC<ResultCardProps> = ({ result, onDownloadCode }) => {
+  const [activeTab, setActiveTab] = useState('results');
+
+  // 安全获取结果数据（处理后端返回格式差异：camelCase vs snake_case）
+  const rawResult = result as any;
+  const results = rawResult.results || rawResult.result || {};
+  const plots = rawResult.plots || [];
+  const reproducibleCode = rawResult.reproducibleCode || rawResult.reproducible_code || '';
+  const executionMs = rawResult.executionMs || rawResult.execution_ms || 0;
+  const guardrailResults = rawResult.guardrailResults || rawResult.guardrail_results || [];
+  const methodName = results.method || '统计分析';
+
+  const copyCode = () => {
+    navigator.clipboard.writeText(reproducibleCode);
+    message.success('代码已复制到剪贴板');
+  };
+
+  const renderGuardrailAlerts = () => {
+    const warnings = guardrailResults.filter(
+      (gr: any) => gr.actionType === 'Warn' || gr.action_type === 'Warn' || 
+        ((gr.actionType === 'Switch' || gr.action_type === 'Switch') && (gr.actionTaken || gr.action_taken))
+    );
+
+    if (!warnings || warnings.length === 0) return null;
+
+    return (
+      <div className="ssa-guardrail-alerts">
+        {warnings.map((gr: any, idx: number) => (
+          <Alert
+            key={idx}
+            type={(gr.actionType || gr.action_type) === 'Switch' ? 'info' : 'warning'}
+            message={
+              (gr.actionType || gr.action_type) === 'Switch'
+                ? `方法已切换: ${gr.switchTarget || gr.switch_target}`
+                : (gr.checkName || gr.check_name)
+            }
+            description={gr.message}
+            showIcon
+            style={{ marginBottom: 8 }}
+          />
+        ))}
+      </div>
+    );
+  };
+
+  const items = [
+    {
+      key: 'results',
+      label: (
+        <span>
+          <FileTextOutlined /> 统计结果
+        </span>
+      ),
+      children: (
+        <div className="ssa-results-tab">
+          {renderGuardrailAlerts()}
+          <APATable result={results} />
+          <div className="ssa-execution-info">
+            <Text type="secondary">执行耗时: {executionMs}ms</Text>
+          </div>
+        </div>
+      ),
+    },
+    {
+      key: 'plots',
+      label: (
+        <span>
+          <BarChartOutlined /> 可视化 ({plots.length || 0})
+        </span>
+      ),
+      children: (
+        <div className="ssa-plots-tab">
+          {plots.map((plot: any, idx: number) => {
+            // 兼容两种格式：
+            // 1. 对象格式: {title: "xxx", imageBase64: "xxx"}
+            // 2. 字符串格式: "data:image/png;base64,xxx"
+            const isString = typeof plot === 'string';
+            const title = isString ? `图表 ${idx + 1}` : (plot.title || `图表 ${idx + 1}`);
+            const imageSrc = isString 
+              ? plot 
+              : (plot.imageBase64 || plot.image_base64 
+                  ? (plot.imageBase64 || plot.image_base64).startsWith('data:')
+                    ? (plot.imageBase64 || plot.image_base64)
+                    : `data:image/png;base64,${plot.imageBase64 || plot.image_base64}`
+                  : '');
+            
+            return (
+              <div key={idx} className="ssa-plot-item">
+                <h4>{title}</h4>
+                {imageSrc ? (
+                  <img
+                    src={imageSrc}
+                    alt={title}
+                    style={{ maxWidth: '100%' }}
+                  />
+                ) : (
+                  <Text type="secondary">图片加载失败</Text>
+                )}
+              </div>
+            );
+          })}
+        </div>
+      ),
+    },
+    {
+      key: 'code',
+      label: (
+        <span>
+          <CodeOutlined /> 可复现代码
+        </span>
+      ),
+      children: (
+        <div className="ssa-code-tab">
+          <Space style={{ marginBottom: 16 }}>
+            <Button icon={<CopyOutlined />} onClick={copyCode}>
+              复制代码
+            </Button>
+            <Button icon={<DownloadOutlined />} onClick={onDownloadCode}>
+              下载 R 脚本
+            </Button>
+          </Space>
+          <pre className="ssa-code-block">
+            {reproducibleCode}
+          </pre>
+        </div>
+      ),
+    },
+  ];
+
+  const statusColor =
+    result.status === 'success'
+      ? '#52c41a'
+      : result.status === 'warning'
+      ? '#faad14'
+      : '#ff4d4f';
+
+  return (
+    <Card
+      className="ssa-result-card"
+      title={
+        <Space>
+          <span
+            className="ssa-status-dot"
+            style={{ backgroundColor: statusColor }}
+          />
+          <span>分析结果 - {methodName}</span>
+        </Space>
+      }
+    >
+      <Tabs activeKey={activeTab} onChange={setActiveTab} items={items} />
+    </Card>
+  );
+};
+
+export default ResultCard;

frontend-v2/src/modules/ssa/components/SAPDownloadButton.tsx

@@ -0,0 +1,79 @@
+/**
+ * SAP 下载按钮组件
+ */
+import React, { useState } from 'react';
+import { Button, Dropdown, message } from 'antd';
+import type { MenuProps } from 'antd';
+import { DownloadOutlined, FileWordOutlined, FilePdfOutlined, FileMarkdownOutlined } from '@ant-design/icons';
+
+interface SAPDownloadButtonProps {
+  sessionId: string;
+  disabled?: boolean;
+}
+
+const SAPDownloadButton: React.FC<SAPDownloadButtonProps> = ({
+  sessionId,
+  disabled = false,
+}) => {
+  const [loading, setLoading] = useState(false);
+
+  const downloadSAP = async (format: 'docx' | 'pdf' | 'md') => {
+    setLoading(true);
+    try {
+      const response = await fetch(
+        `/api/v1/ssa/consult/${sessionId}/download-sap?format=${format}`
+      );
+
+      if (!response.ok) {
+        throw new Error('下载失败');
+      }
+
+      const blob = await response.blob();
+      const url = window.URL.createObjectURL(blob);
+      const a = document.createElement('a');
+      a.href = url;
+      a.download = `SAP_${sessionId}.${format}`;
+      document.body.appendChild(a);
+      a.click();
+      document.body.removeChild(a);
+      window.URL.revokeObjectURL(url);
+
+      message.success('SAP 下载成功');
+    } catch (error) {
+      message.error('下载失败，请重试');
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const items: MenuProps['items'] = [
+    {
+      key: 'docx',
+      icon: <FileWordOutlined />,
+      label: 'Word 文档 (.docx)',
+      onClick: () => downloadSAP('docx'),
+    },
+    {
+      key: 'pdf',
+      icon: <FilePdfOutlined />,
+      label: 'PDF 文档 (.pdf)',
+      onClick: () => downloadSAP('pdf'),
+    },
+    {
+      key: 'md',
+      icon: <FileMarkdownOutlined />,
+      label: 'Markdown (.md)',
+      onClick: () => downloadSAP('md'),
+    },
+  ];
+
+  return (
+    <Dropdown menu={{ items }} disabled={disabled || loading}>
+      <Button icon={<DownloadOutlined />} loading={loading}>
+        下载 SAP
+      </Button>
+    </Dropdown>
+  );
+};
+
+export default SAPDownloadButton;

frontend-v2/src/modules/ssa/components/SAPPreview.tsx

@@ -0,0 +1,74 @@
+/**
+ * SAP 统计分析计划预览组件
+ */
+import React from 'react';
+import { Card, Timeline, Typography, Descriptions, Tag } from 'antd';
+import { FileTextOutlined, ExperimentOutlined } from '@ant-design/icons';
+import type { SAP } from '../types';
+
+const { Title, Paragraph, Text } = Typography;
+
+interface SAPPreviewProps {
+  sap: SAP;
+}
+
+const SAPPreview: React.FC<SAPPreviewProps> = ({ sap }) => {
+  return (
+    <Card className="ssa-sap-preview">
+      <div className="ssa-sap-header">
+        <FileTextOutlined style={{ fontSize: 24, marginRight: 12 }} />
+        <div>
+          <Title level={4} style={{ margin: 0 }}>
+            {sap.title}
+          </Title>
+          <Text type="secondary">版本 {sap.version}</Text>
+        </div>
+      </div>
+
+      <Descriptions
+        column={1}
+        size="small"
+        style={{ marginTop: 16, marginBottom: 16 }}
+      >
+        <Descriptions.Item label="研究目的">
+          <ul style={{ margin: 0, paddingLeft: 20 }}>
+            {sap.objectives.map((obj, idx) => (
+              <li key={idx}>{obj}</li>
+            ))}
+          </ul>
+        </Descriptions.Item>
+        <Descriptions.Item label="数据描述">
+          <Paragraph style={{ margin: 0 }}>{sap.dataDescription}</Paragraph>
+        </Descriptions.Item>
+      </Descriptions>
+
+      <div className="ssa-sap-steps">
+        <Title level={5}>
+          <ExperimentOutlined /> 分析步骤
+        </Title>
+        <Timeline>
+          {sap.analysisSteps.map((step) => (
+            <Timeline.Item key={step.order}>
+              <div className="ssa-sap-step">
+                <Text strong>
+                  步骤 {step.order}: {step.name}
+                </Text>
+                <Paragraph type="secondary" style={{ margin: '4px 0' }}>
+                  {step.description}
+                </Paragraph>
+                <div>
+                  <Tag color="blue">{step.method}</Tag>
+                  {step.variables.map((v, idx) => (
+                    <Tag key={idx}>{v}</Tag>
+                  ))}
+                </div>
+              </div>
+            </Timeline.Item>
+          ))}
+        </Timeline>
+      </div>
+    </Card>
+  );
+};
+
+export default SAPPreview;

frontend-v2/src/modules/ssa/components/index.ts

@@ -0,0 +1,9 @@
+export { default as ModeSwitch } from './ModeSwitch';
+export { default as PlanCard } from './PlanCard';
+export { default as ExecutionTrace } from './ExecutionTrace';
+export { default as ResultCard } from './ResultCard';
+export { default as APATable } from './APATable';
+export { default as ExecutionProgress } from './ExecutionProgress';
+export { default as SAPPreview } from './SAPPreview';
+export { default as SAPDownloadButton } from './SAPDownloadButton';
+// ConsultChat 已删除，使用 @/shared/components/Chat/AIStreamChat 替代

frontend-v2/src/modules/ssa/hooks/index.ts

@@ -0,0 +1 @@
+export { useAnalysis } from './useAnalysis';

frontend-v2/src/modules/ssa/hooks/useAnalysis.ts

@@ -0,0 +1,288 @@
+/**
+ * SSA 分析相关的自定义 Hook
+ * 
+ * 遵循规范：
+ * - 使用 apiClient（带认证的 axios 实例）
+ * - 使用 getAccessToken 处理文件上传
+ */
+import { useCallback, useState } from 'react';
+import apiClient from '@/common/api/axios';
+import { getAccessToken } from '@/framework/auth/api';
+import { useSSAStore } from '../stores/ssaStore';
+import type { AnalysisPlan, ExecutionResult, Message, TraceStep } from '../types';
+
+const API_BASE = '/api/v1/ssa';
+
+interface UploadResult {
+  sessionId: string;
+  schema: {
+    columns: Array<{
+      name: string;
+      type: string;
+      uniqueValues?: number;
+      nullCount?: number;
+    }>;
+    rowCount: number;
+  };
+}
+
+interface DownloadResult {
+  blob: Blob;
+  filename: string;
+}
+
+interface UseAnalysisReturn {
+  uploadData: (file: File) => Promise<UploadResult>;
+  generatePlan: (query: string) => Promise<AnalysisPlan>;
+  executePlan: (planId: string) => Promise<ExecutionResult>;
+  downloadCode: () => Promise<DownloadResult>;
+  isUploading: boolean;
+  uploadProgress: number;
+}
+
+export function useAnalysis(): UseAnalysisReturn {
+  const {
+    currentSession,
+    setCurrentPlan,
+    setExecutionResult,
+    setTraceSteps,
+    updateTraceStep,
+    addMessage,
+    setLoading,
+    setExecuting,
+    setError,
+  } = useSSAStore();
+
+  const [isUploading, setIsUploading] = useState(false);
+  const [uploadProgress, setUploadProgress] = useState(0);
+
+  const uploadData = useCallback(async (file: File): Promise<UploadResult> => {
+    setIsUploading(true);
+    setUploadProgress(0);
+
+    const formData = new FormData();
+    formData.append('file', file);
+
+    try {
+      // 文件上传使用 fetch + 手动添加认证头（不设置 Content-Type）
+      const token = getAccessToken();
+      const headers: HeadersInit = {};
+      if (token) {
+        headers['Authorization'] = `Bearer ${token}`;
+      }
+
+      const response = await fetch(`${API_BASE}/sessions`, {
+        method: 'POST',
+        headers,
+        body: formData,
+      });
+
+      if (!response.ok) {
+        throw new Error('上传失败');
+      }
+
+      const result = await response.json();
+      setUploadProgress(100);
+      return result;
+    } catch (error) {
+      setError(error instanceof Error ? error.message : '上传出错');
+      throw error;
+    } finally {
+      setIsUploading(false);
+    }
+  }, [setError]);
+
+  const generatePlan = useCallback(
+    async (query: string): Promise<AnalysisPlan> => {
+      if (!currentSession) {
+        throw new Error('请先上传数据');
+      }
+
+      setLoading(true);
+
+      try {
+        const userMessage: Message = {
+          id: crypto.randomUUID(),
+          role: 'user',
+          contentType: 'text',
+          content: { text: query },
+          createdAt: new Date().toISOString(),
+        };
+        addMessage(userMessage);
+
+        const response = await apiClient.post(
+          `${API_BASE}/sessions/${currentSession.id}/plan`,
+          { query }
+        );
+
+        const plan: AnalysisPlan = response.data;
+        setCurrentPlan(plan);
+
+        const planMessage: Message = {
+          id: crypto.randomUUID(),
+          role: 'assistant',
+          contentType: 'plan',
+          content: { plan, canExecute: true },
+          createdAt: new Date().toISOString(),
+        };
+        addMessage(planMessage);
+
+        return plan;
+      } catch (error) {
+        setError(error instanceof Error ? error.message : '生成计划出错');
+        throw error;
+      } finally {
+        setLoading(false);
+      }
+    },
+    [currentSession, addMessage, setCurrentPlan, setLoading, setError]
+  );
+
+  const executePlan = useCallback(
+    async (_planId: string): Promise<ExecutionResult> => {
+      if (!currentSession) {
+        throw new Error('请先上传数据');
+      }
+
+      // 获取当前 plan（从 store）
+      const plan = useSSAStore.getState().currentPlan;
+      if (!plan) {
+        throw new Error('请先生成分析计划');
+      }
+
+      setExecuting(true);
+      setExecutionResult(null);
+
+      const initialSteps: TraceStep[] = [
+        { index: 0, name: '参数验证', status: 'pending' },
+        { index: 1, name: '护栏检查', status: 'pending' },
+        { index: 2, name: '统计计算', status: 'pending' },
+        { index: 3, name: '可视化生成', status: 'pending' },
+        { index: 4, name: '结果格式化', status: 'pending' },
+      ];
+      setTraceSteps(initialSteps);
+
+      try {
+        updateTraceStep(0, { status: 'running' });
+
+        // 发送完整的 plan 对象（转换为后端格式）
+        const response = await apiClient.post(
+          `${API_BASE}/sessions/${currentSession.id}/execute`,
+          { 
+            plan: {
+              tool_code: plan.toolCode,
+              tool_name: plan.toolName,
+              params: plan.parameters,
+              guardrails: plan.guardrails
+            }
+          }
+        );
+
+        const result: ExecutionResult = response.data;
+
+        initialSteps.forEach((_, i) => {
+          updateTraceStep(i, { status: 'success' });
+        });
+
+        result.guardrailResults?.forEach((gr) => {
+          if (gr.actionType === 'Switch' && gr.actionTaken) {
+            updateTraceStep(1, {
+              status: 'switched',
+              actionType: 'Switch',
+              switchTarget: gr.switchTarget,
+              message: gr.message,
+            });
+          } else if (gr.actionType === 'Warn') {
+            updateTraceStep(1, {
+              actionType: 'Warn',
+              message: gr.message,
+            });
+          }
+        });
+
+        setExecutionResult(result);
+
+        const resultMessage: Message = {
+          id: crypto.randomUUID(),
+          role: 'assistant',
+          contentType: 'result',
+          content: { execution: result },
+          createdAt: new Date().toISOString(),
+        };
+        addMessage(resultMessage);
+
+        return result;
+      } catch (error: any) {
+        initialSteps.forEach((step, i) => {
+          if (step.status === 'running' || step.status === 'pending') {
+            updateTraceStep(i, { status: 'failed' });
+          }
+        });
+        
+        // 提取 R 服务返回的具体错误信息
+        const errorData = error.response?.data;
+        const errorMessage = errorData?.user_hint || errorData?.error || 
+          (error instanceof Error ? error.message : '执行出错');
+        
+        setError(errorMessage);
+        throw new Error(errorMessage);
+      } finally {
+        setExecuting(false);
+      }
+    },
+    [
+      currentSession,
+      addMessage,
+      setExecutionResult,
+      setTraceSteps,
+      updateTraceStep,
+      setExecuting,
+      setError,
+    ]
+  );
+
+  const downloadCode = useCallback(async (): Promise<DownloadResult> => {
+    if (!currentSession) {
+      throw new Error('请先上传数据');
+    }
+
+    const response = await apiClient.get(
+      `${API_BASE}/sessions/${currentSession.id}/download-code`,
+      { responseType: 'blob' }
+    );
+
+    // 从 Content-Disposition header 提取文件名
+    const contentDisposition = response.headers['content-disposition'];
+    let filename = `analysis_${currentSession.id}.R`;
+    
+    if (contentDisposition) {
+      // 尝试匹配 filename="xxx" 或 filename*=UTF-8''xxx
+      const filenameMatch = contentDisposition.match(/filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/);
+      if (filenameMatch) {
+        let extractedName = filenameMatch[1].replace(/['"]/g, '');
+        // 处理 URL 编码的文件名
+        try {
+          extractedName = decodeURIComponent(extractedName);
+        } catch {
+          // 解码失败，使用原始值
+        }
+        if (extractedName) {
+          filename = extractedName;
+        }
+      }
+    }
+
+    return { blob: response.data, filename };
+  }, [currentSession]);
+
+  return {
+    uploadData,
+    generatePlan,
+    executePlan,
+    downloadCode,
+    isUploading,
+    uploadProgress,
+  };
+}
+
+export default useAnalysis;

frontend-v2/src/modules/ssa/index.tsx

@@ -1,34 +1,296 @@
-import React from 'react'
-import Placeholder from '../../shared/components/Placeholder'
-
 /**
- * 智能统计分析模块
- * Java团队开发，前端仅做导航集成
+ * SSA 智能统计分析模块主入口
+ * 
+ * 遵循规范：
+ * - 使用 AIStreamChat（通用 Chat 组件）
+ * - 使用 apiClient（带认证的 axios）
  */
+import React, { useState, useCallback, useEffect } from 'react';
+import {
+  Card,
+  Upload,
+  Input,
+  Button,
+  Space,
+  Typography,
+  message,
+  Empty,
+} from 'antd';
+import {
+  UploadOutlined,
+  SendOutlined,
+  CloudUploadOutlined,
+} from '@ant-design/icons';
+import type { UploadProps } from 'antd';
+
+import { useSSAStore } from './stores/ssaStore';
+import { useAnalysis } from './hooks/useAnalysis';
+import {
+  ModeSwitch,
+  PlanCard,
+  ExecutionTrace,
+  ResultCard,
+  ExecutionProgress,
+  SAPDownloadButton,
+} from './components';
+// 使用通用 Chat 组件（遵循通用能力层清单）
+import { AIStreamChat } from '@/shared/components/Chat';
+import './styles/ssa.css';
+
+const { Title, Text, Paragraph } = Typography;
+const { TextArea } = Input;
+
 const SSAModule: React.FC = () => {
+  const {
+    mode,
+    currentSession,
+    messages,
+    currentPlan,
+    executionResult,
+    traceSteps,
+    isLoading,
+    isExecuting,
+    setCurrentSession,
+    reset,
+  } = useSSAStore();
+
+  // 组件挂载时重置 store，确保不同用户看到独立的状态
+  useEffect(() => {
+    reset();
+  }, [reset]);
+
+  const {
+    uploadData,
+    generatePlan,
+    executePlan,
+    downloadCode,
+    isUploading,
+    uploadProgress,
+  } = useAnalysis();
+
+  const [query, setQuery] = useState('');
+
+  const handleUpload: UploadProps['customRequest'] = async (options) => {
+    const { file, onSuccess, onError } = options;
+    try {
+      const result = await uploadData(file as File);
+      setCurrentSession({
+        id: result.sessionId,
+        title: (file as File).name,
+        mode: mode,
+        status: 'active',
+        dataSchema: {
+          columns: result.schema.columns.map((c) => ({
+            name: c.name,
+            type: c.type as 'numeric' | 'categorical' | 'datetime' | 'text',
+            uniqueValues: c.uniqueValues,
+            nullCount: c.nullCount,
+          })),
+          rowCount: result.schema.rowCount,
+          preview: [],
+        },
+        createdAt: new Date().toISOString(),
+        updatedAt: new Date().toISOString(),
+      });
+      message.success('数据上传成功');
+      onSuccess?.({});
+    } catch (error) {
+      message.error('上传失败');
+      onError?.(error as Error);
+    }
+  };
+
+  const handleGeneratePlan = async () => {
+    if (!query.trim()) {
+      message.warning('请输入分析需求');
+      return;
+    }
+    try {
+      await generatePlan(query);
+      setQuery('');
+    } catch (error) {
+      message.error('生成计划失败');
+    }
+  };
+
+  const handleExecute = async () => {
+    if (!currentPlan) return;
+    try {
+      await executePlan(currentPlan.id);
+    } catch (error: any) {
+      message.error(error.message || '执行失败');
+    }
+  };
+
+  const handleDownloadCode = async () => {
+    try {
+      const { blob, filename } = await downloadCode();
+      const url = window.URL.createObjectURL(blob);
+      const a = document.createElement('a');
+      a.href = url;
+      a.download = filename;
+      document.body.appendChild(a);
+      a.click();
+      document.body.removeChild(a);
+      window.URL.revokeObjectURL(url);
+      message.success('代码下载成功');
+    } catch (error) {
+      message.error('下载失败');
+    }
+  };
+
+  // 咨询模式使用 AIStreamChat，无需自定义消息处理
+
   return (
-    <Placeholder 
-      moduleName="智能统计分析" 
-      message="由Java团队开发中，前端集成规划中" 
-    />
-  )
-}
-
-export default SSAModule
-
-
-
-
-
-
-
-
-
-
+    <div className="ssa-page">
+      <div className="ssa-page-header">
+        <Title level={3}>智能统计分析</Title>
+        <Paragraph type="secondary">
+          上传数据，描述分析需求，AI 自动生成分析方案并执行
+        </Paragraph>
+        <ModeSwitch disabled={isUploading || isExecuting} />
+      </div>
 
+      <div className="ssa-workspace">
+        <div className="ssa-main-panel">
+          {!currentSession ? (
+            <Card>
+              <div className="ssa-upload-area">
+                <Upload.Dragger
+                  name="file"
+                  accept=".csv,.xlsx,.xls"
+                  customRequest={handleUpload}
+                  showUploadList={false}
+                  disabled={isUploading}
+                >
+                  <p className="ssa-upload-icon">
+                    <CloudUploadOutlined />
+                  </p>
+                  <p className="ant-upload-text">点击或拖拽文件到此区域上传</p>
+                  <p className="ant-upload-hint">
+                    支持 CSV、Excel 格式，单文件最大 50MB
+                  </p>
+                </Upload.Dragger>
+              </div>
+            </Card>
+          ) : mode === 'analysis' ? (
+            <>
+              <Card style={{ marginBottom: 16 }}>
+                <div className="ssa-query-input">
+                  <TextArea
+                    value={query}
+                    onChange={(e) => setQuery(e.target.value)}
+                    placeholder="例如：比较 A 组和 B 组的身高差异是否有统计学意义"
+                    autoSize={{ minRows: 2, maxRows: 4 }}
+                    disabled={isLoading}
+                  />
+                  <Button
+                    type="primary"
+                    icon={<SendOutlined />}
+                    onClick={handleGeneratePlan}
+                    loading={isLoading}
+                    style={{ marginTop: 12 }}
+                  >
+                    生成分析计划
+                  </Button>
+                </div>
+              </Card>
 
+              {currentPlan && (
+                <PlanCard
+                  plan={currentPlan}
+                  canExecute={true}
+                  onExecute={handleExecute}
+                  isExecuting={isExecuting}
+                />
+              )}
 
+              {isExecuting && traceSteps.length > 0 && (
+                <>
+                  <ExecutionProgress steps={traceSteps} />
+                  <ExecutionTrace steps={traceSteps} />
+                </>
+              )}
 
+              {executionResult && (
+                <ResultCard
+                  result={executionResult}
+                  onDownloadCode={handleDownloadCode}
+                />
+              )}
 
+              {!currentPlan && !executionResult && (
+                <Card>
+                  <Empty description="请输入分析需求，AI 将为您生成统计分析计划" />
+                </Card>
+              )}
+            </>
+          ) : (
+            <Card className="ssa-consult-card">
+              {/* 使用通用 AIStreamChat 组件（遵循通用能力层清单） */}
+              <AIStreamChat
+                apiEndpoint={`/api/v1/ssa/consult/${currentSession?.id}/chat/stream`}
+                conversationId={currentSession?.id}
+                agentId="SSA_CONSULT"
+                enableDeepThinking={true}
+                welcome={{
+                  title: '统计分析咨询',
+                  description: '请描述您的研究设计和分析需求，我将为您生成统计分析计划（SAP）',
+                }}
+              />
+              {currentSession && (
+                <div style={{ marginTop: 16, textAlign: 'right' }}>
+                  <SAPDownloadButton
+                    sessionId={currentSession.id}
+                    disabled={messages.length < 2}
+                  />
+                </div>
+              )}
+            </Card>
+          )}
+        </div>
 
+        <div className="ssa-side-panel">
+          <Card title="数据信息" size="small">
+            {currentSession?.dataSchema ? (
+              <>
+                <Paragraph>
+                  <Text strong>文件: </Text>
+                  {currentSession.title}
+                </Paragraph>
+                <Paragraph>
+                  <Text strong>行数: </Text>
+                  {currentSession.dataSchema.rowCount}
+                </Paragraph>
+                <Paragraph>
+                  <Text strong>列数: </Text>
+                  {currentSession.dataSchema.columns.length}
+                </Paragraph>
+                <div style={{ marginTop: 12 }}>
+                  <Text strong>变量列表:</Text>
+                  <ul style={{ paddingLeft: 20, marginTop: 8 }}>
+                    {currentSession.dataSchema.columns.map((col) => (
+                      <li key={col.name}>
+                        <Text code>{col.name}</Text>
+                        <Text type="secondary" style={{ marginLeft: 8 }}>
+                          ({col.type})
+                        </Text>
+                      </li>
+                    ))}
+                  </ul>
+                </div>
+              </>
+            ) : (
+              <Empty
+                description="暂无数据"
+                image={Empty.PRESENTED_IMAGE_SIMPLE}
+              />
+            )}
+          </Card>
+        </div>
+      </div>
+    </div>
+  );
+};
 
+export default SSAModule;

frontend-v2/src/modules/ssa/stores/ssaStore.ts

@@ -0,0 +1,86 @@
+/**
+ * SSA 状态管理 - Zustand Store
+ */
+import { create } from 'zustand';
+import type {
+  SSAMode,
+  SSASession,
+  Message,
+  AnalysisPlan,
+  ExecutionResult,
+  TraceStep,
+  DataSchema,
+} from '../types';
+
+interface SSAState {
+  mode: SSAMode;
+  currentSession: SSASession | null;
+  messages: Message[];
+  currentPlan: AnalysisPlan | null;
+  executionResult: ExecutionResult | null;
+  traceSteps: TraceStep[];
+  isLoading: boolean;
+  isExecuting: boolean;
+  error: string | null;
+
+  setMode: (mode: SSAMode) => void;
+  setCurrentSession: (session: SSASession | null) => void;
+  addMessage: (message: Message) => void;
+  setMessages: (messages: Message[]) => void;
+  setCurrentPlan: (plan: AnalysisPlan | null) => void;
+  setExecutionResult: (result: ExecutionResult | null) => void;
+  setTraceSteps: (steps: TraceStep[]) => void;
+  updateTraceStep: (index: number, step: Partial<TraceStep>) => void;
+  setLoading: (loading: boolean) => void;
+  setExecuting: (executing: boolean) => void;
+  setError: (error: string | null) => void;
+  reset: () => void;
+}
+
+const initialState = {
+  mode: 'analysis' as SSAMode,
+  currentSession: null,
+  messages: [],
+  currentPlan: null,
+  executionResult: null,
+  traceSteps: [],
+  isLoading: false,
+  isExecuting: false,
+  error: null,
+};
+
+export const useSSAStore = create<SSAState>((set) => ({
+  ...initialState,
+
+  setMode: (mode) => set({ mode }),
+
+  setCurrentSession: (session) => set({ currentSession: session }),
+
+  addMessage: (message) =>
+    set((state) => ({ messages: [...state.messages, message] })),
+
+  setMessages: (messages) => set({ messages }),
+
+  setCurrentPlan: (plan) => set({ currentPlan: plan }),
+
+  setExecutionResult: (result) => set({ executionResult: result }),
+
+  setTraceSteps: (steps) => set({ traceSteps: steps }),
+
+  updateTraceStep: (index, step) =>
+    set((state) => ({
+      traceSteps: state.traceSteps.map((s, i) =>
+        i === index ? { ...s, ...step } : s
+      ),
+    })),
+
+  setLoading: (loading) => set({ isLoading: loading }),
+
+  setExecuting: (executing) => set({ isExecuting: executing }),
+
+  setError: (error) => set({ error }),
+
+  reset: () => set(initialState),
+}));
+
+export default useSSAStore;

frontend-v2/src/modules/ssa/styles/ssa.css

@@ -0,0 +1,291 @@
+/**
+ * SSA 智能统计分析模块样式
+ */
+
+/* 模式切换 */
+.ssa-mode-switch {
+  margin-bottom: 16px;
+}
+
+.ssa-mode-option {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+
+/* 计划卡片 */
+.ssa-plan-card {
+  margin-bottom: 16px;
+}
+
+.ssa-plan-card .ant-card-head {
+  background: #fafafa;
+}
+
+.ssa-params-preview {
+  background: #f5f5f5;
+  padding: 12px;
+  border-radius: 6px;
+  font-size: 12px;
+  max-height: 200px;
+  overflow-y: auto;
+  margin: 0;
+}
+
+.ssa-guardrails {
+  margin-top: 16px;
+  padding-top: 16px;
+  border-top: 1px solid #f0f0f0;
+}
+
+.ssa-guardrails-title {
+  font-weight: 500;
+  margin-bottom: 8px;
+  color: #52c41a;
+}
+
+/* 执行追踪 */
+.ssa-execution-trace {
+  padding: 16px;
+  background: #fafafa;
+  border-radius: 8px;
+  margin-bottom: 16px;
+}
+
+.ssa-execution-trace.compact {
+  padding: 12px;
+}
+
+.ssa-trace-title {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+/* 执行进度 */
+.ssa-execution-progress {
+  padding: 16px;
+  background: #fff;
+  border: 1px solid #f0f0f0;
+  border-radius: 8px;
+  margin-bottom: 16px;
+}
+
+/* 结果卡片 */
+.ssa-result-card {
+  margin-bottom: 16px;
+}
+
+.ssa-status-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  display: inline-block;
+}
+
+.ssa-results-tab,
+.ssa-plots-tab,
+.ssa-code-tab {
+  padding: 8px 0;
+}
+
+.ssa-guardrail-alerts {
+  margin-bottom: 16px;
+}
+
+.ssa-execution-info {
+  margin-top: 16px;
+  text-align: right;
+}
+
+.ssa-plot-item {
+  margin-bottom: 24px;
+  text-align: center;
+}
+
+.ssa-plot-item h4 {
+  margin-bottom: 12px;
+  color: #666;
+}
+
+.ssa-code-block {
+  background: #1e1e1e;
+  color: #d4d4d4;
+  padding: 16px;
+  border-radius: 8px;
+  font-family: 'Fira Code', 'Consolas', monospace;
+  font-size: 13px;
+  line-height: 1.5;
+  overflow-x: auto;
+  white-space: pre-wrap;
+  word-wrap: break-word;
+  max-height: 500px;
+  overflow-y: auto;
+}
+
+/* APA 表格 */
+.ssa-apa-table {
+  margin-top: 8px;
+}
+
+.ssa-apa-table .ant-table-thead > tr > th {
+  background: #fafafa;
+  font-weight: 600;
+}
+
+/* SAP 预览 */
+.ssa-sap-preview {
+  margin-bottom: 16px;
+}
+
+.ssa-sap-header {
+  display: flex;
+  align-items: center;
+  padding-bottom: 16px;
+  border-bottom: 1px solid #f0f0f0;
+}
+
+.ssa-sap-steps {
+  margin-top: 16px;
+}
+
+.ssa-sap-step {
+  padding: 8px 0;
+}
+
+/* 咨询聊天 */
+.ssa-consult-chat {
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  min-height: 400px;
+}
+
+.ssa-chat-messages {
+  flex: 1;
+  overflow-y: auto;
+  padding: 16px;
+  background: #f5f5f5;
+  border-radius: 8px;
+  margin-bottom: 16px;
+}
+
+.ssa-chat-message {
+  display: flex;
+  margin-bottom: 16px;
+  gap: 12px;
+}
+
+.ssa-chat-message.user {
+  flex-direction: row-reverse;
+}
+
+.ssa-chat-avatar.user {
+  background: #1890ff;
+}
+
+.ssa-chat-avatar.assistant {
+  background: #52c41a;
+}
+
+.ssa-chat-bubble {
+  max-width: 70%;
+  padding: 12px 16px;
+  border-radius: 12px;
+  background: #fff;
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
+}
+
+.ssa-chat-message.user .ssa-chat-bubble {
+  background: #1890ff;
+  color: #fff;
+}
+
+.ssa-chat-content {
+  white-space: pre-wrap;
+  word-wrap: break-word;
+}
+
+.ssa-chat-time {
+  font-size: 11px;
+  color: #999;
+  margin-top: 4px;
+  text-align: right;
+}
+
+.ssa-chat-message.user .ssa-chat-time {
+  color: rgba(255, 255, 255, 0.7);
+}
+
+.ssa-chat-input {
+  display: flex;
+  gap: 12px;
+  align-items: flex-end;
+}
+
+.ssa-chat-input .ant-input {
+  flex: 1;
+}
+
+/* 主页面布局 */
+.ssa-page {
+  padding: 24px;
+  min-height: 100vh;
+  height: auto;
+  overflow-y: auto;
+  background: #f0f2f5;
+}
+
+.ssa-page-header {
+  margin-bottom: 24px;
+}
+
+.ssa-workspace {
+  display: flex;
+  gap: 24px;
+}
+
+.ssa-main-panel {
+  flex: 1;
+  min-width: 0;
+}
+
+.ssa-side-panel {
+  width: 350px;
+  flex-shrink: 0;
+}
+
+.ssa-upload-area {
+  padding: 48px 24px;
+  text-align: center;
+  background: #fff;
+  border: 2px dashed #d9d9d9;
+  border-radius: 8px;
+  margin-bottom: 24px;
+  transition: border-color 0.3s;
+}
+
+.ssa-upload-area:hover {
+  border-color: #1890ff;
+}
+
+.ssa-upload-icon {
+  font-size: 48px;
+  color: #1890ff;
+  margin-bottom: 16px;
+}
+
+.ssa-query-input {
+  margin-bottom: 16px;
+}
+
+/* 响应式 */
+@media (max-width: 1200px) {
+  .ssa-workspace {
+    flex-direction: column;
+  }
+
+  .ssa-side-panel {
+    width: 100%;
+  }
+}

frontend-v2/src/modules/ssa/types/index.ts

@@ -0,0 +1,136 @@
+/**
+ * SSA 智能统计分析模块类型定义
+ */
+
+export type SSAMode = 'analysis' | 'consult';
+
+export type SessionStatus = 'active' | 'completed' | 'archived';
+
+export interface SSASession {
+  id: string;
+  title: string;
+  mode: SSAMode;
+  status: SessionStatus;
+  dataSchema?: DataSchema;
+  createdAt: string;
+  updatedAt: string;
+}
+
+export interface DataSchema {
+  columns: ColumnInfo[];
+  rowCount: number;
+  preview: Record<string, unknown>[];
+}
+
+export interface ColumnInfo {
+  name: string;
+  type: 'numeric' | 'categorical' | 'datetime' | 'text';
+  uniqueValues?: number;
+  nullCount?: number;
+}
+
+export interface Message {
+  id: string;
+  role: 'user' | 'assistant' | 'system';
+  contentType: 'text' | 'plan' | 'result' | 'error';
+  content: TextContent | PlanContent | ResultContent | ErrorContent;
+  createdAt: string;
+}
+
+export interface TextContent {
+  text: string;
+}
+
+export interface PlanContent {
+  plan: AnalysisPlan;
+  canExecute: boolean;
+}
+
+export interface ResultContent {
+  execution: ExecutionResult;
+}
+
+export interface ErrorContent {
+  code: string;
+  message: string;
+  suggestion?: string;
+}
+
+export interface AnalysisPlan {
+  id: string;
+  toolCode: string;
+  toolName: string;
+  description: string;
+  parameters: Record<string, unknown>;
+  guardrails: GuardrailConfig[];
+  confidence: number;
+}
+
+export interface GuardrailConfig {
+  checkName: string;
+  checkCode: string;
+  threshold?: string;
+  actionType: 'Block' | 'Warn' | 'Switch';
+  actionTarget?: string;
+}
+
+export interface ExecutionResult {
+  status: 'success' | 'warning' | 'failed';
+  results: StatisticalResult;
+  plots: PlotData[];
+  reproducibleCode: string;
+  guardrailResults: GuardrailResult[];
+  executionMs: number;
+}
+
+export interface StatisticalResult {
+  method: string;
+  statistic: number;
+  pValue: number;
+  effectSize?: number;
+  ci?: [number, number];
+  details: Record<string, unknown>;
+}
+
+export interface PlotData {
+  type: string;
+  title: string;
+  imageBase64: string;
+}
+
+export interface GuardrailResult {
+  checkName: string;
+  passed: boolean;
+  actionType: 'Block' | 'Warn' | 'Switch';
+  actionTaken: boolean;
+  switchTarget?: string;
+  message: string;
+}
+
+export interface SAP {
+  id: string;
+  title: string;
+  version: string;
+  objectives: string[];
+  dataDescription: string;
+  analysisSteps: AnalysisStep[];
+  createdAt: string;
+}
+
+export interface AnalysisStep {
+  order: number;
+  name: string;
+  description: string;
+  method: string;
+  variables: string[];
+}
+
+export interface TraceStep {
+  index: number;
+  name: string;
+  status: 'pending' | 'running' | 'success' | 'failed' | 'switched';
+  actionType?: 'Block' | 'Warn' | 'Switch';
+  switchTarget?: string;
+  message?: string;
+  durationMs?: number;
+}