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>

backend/src/index.ts

@@ -69,7 +69,7 @@ console.log('✅ CORS已配置: 允许所有HTTP方法 (GET, POST, PUT, DELETE,
 // 注册文件上传插件
 await fastify.register(multipart, {
   limits: {
-    fileSize: 10 * 1024 * 1024, // 10MB
+    fileSize: 50 * 1024 * 1024, // 50MB（与前端提示一致）
   },
 });
 console.log('✅ 文件上传插件已配置: 最大文件大小 10MB');
@@ -205,6 +205,13 @@ import { registerIitRoutes, initIitManager } from './modules/iit-manager/index.j
 await registerIitRoutes(fastify);
 logger.info('✅ IIT Manager Agent路由已注册: /api/v1/iit');
 
+// ============================================
+// 【业务模块】SSA - 智能统计分析
+// ============================================
+import { ssaRoutes } from './modules/ssa/index.js';
+await fastify.register(ssaRoutes, { prefix: '/api/v1/ssa' });
+logger.info('✅ SSA智能统计分析路由已注册: /api/v1/ssa');
+
 // 启动服务器
 const start = async () => {
   try {
@@ -246,8 +253,8 @@ const start = async () => {
       registerParseExcelWorker();
       logger.info('✅ DC Tool C parse excel worker registered');
       
-      // 注册RVW审稿Worker
-      registerReviewWorker();
+      // 注册RVW审稿Worker（包含启动时清理卡住任务）
+      await registerReviewWorker();
       logger.info('✅ RVW review worker registered');
       
       // 注册IIT Manager Workers