feat(server): 完成 P2 后端能力（支付幂等、委派回收、OCR异步、审计）

server/src/app.js

@@ -16,6 +16,10 @@ const meRoutes = require("./routes/me");
 const reimbursementRoutes = require("./routes/reimbursements");
 const invoicePoolRoutes = require("./routes/invoicePool");
 const workflowRoutes = require("./routes/workflow");
+const delegationRoutes = require("./routes/delegations");
+const auditRoutes = require("./routes/audit");
+const { startDelegationRevokeJob } = require("./jobs/delegationRevokeJob");
+const { startOcrJob } = require("./jobs/ocrJob");
 const { AppError } = require("./utils/AppError");
 
 async function buildApp() {
@@ -114,6 +118,11 @@ async function buildApp() {
   await app.register(reimbursementRoutes, { prefix: "/api" });
   await app.register(invoicePoolRoutes, { prefix: "/api" });
   await app.register(workflowRoutes, { prefix: "/api" });
+  await app.register(delegationRoutes, { prefix: "/api" });
+  await app.register(auditRoutes, { prefix: "/api" });
+
+  startDelegationRevokeJob(app);
+  startOcrJob(app);
 
   return app;
 }