feat: 完成P6-P8后端能力与P9路由重构（V1-V2,D1,D3,B1-B2,B4,I1-I4,P9A2-P9A3）

server/src/app.js

@@ -30,6 +30,10 @@ const configReadRoutes = require("./routes/configRead");
 const approvalRulesRoutes = require("./routes/approvalRules");
 const notificationsRoutes = require("./routes/notifications");
 const exportsRoutes = require("./routes/exports");
+const dashboardRoutes = require("./routes/dashboard");
+const budgetsRoutes = require("./routes/budgets");
+const integrationsRoutes = require("./routes/integrations");
+const travelOrdersRoutes = require("./routes/travelOrders");
 const { startJobs } = require("./jobs/jobSystem");
 const { initMetrics } = require("./observability");
 const { AppError } = require("./utils/AppError");
@@ -226,6 +230,10 @@ async function buildApp() {
   await app.register(configReadRoutes, { prefix: "/api" });
   await app.register(approvalRulesRoutes, { prefix: "/api" });
   await app.register(notificationsRoutes, { prefix: "/api" });
+  await app.register(dashboardRoutes, { prefix: "/api" });
+  await app.register(budgetsRoutes, { prefix: "/api" });
+  await app.register(integrationsRoutes, { prefix: "/api" });
+  await app.register(travelOrdersRoutes, { prefix: "/api" });
   await app.register(exportsRoutes, { prefix: "/api" });
 
   await startJobs(app);