P25L-1~P25L-5 实现预算控制与AP最小可用运营

合同 CSV 已回填 reviewer/QA 结果；运行时回归受当前环境缺少 node/npm 阻塞。

server/src/routes/purchaseRequests.js

@@ -15,8 +15,8 @@ const { FEATURE_FLAG_KEYS, evaluateFeatureFlag } = require("../services/featureF
 const { ensureCutoverAllowed } = require("../services/cutover");
 const {
   buildPersistedRiskFlag,
-  buildPurchaseRequestPrecheck,
   createRiskFlagsFromPrecheck,
+  resolveEntityPrecheck,
 } = require("../services/feeControl");
 const {
   PROCUREMENT_ERP_TARGETS,
@@ -343,20 +343,6 @@ function normalizeBudgetControlMode(config) {
   return String(config.budgetControlMode ?? "warn").toLowerCase() === "block" ? "block" : "warn";
 }
 
-function buildDisabledPrecheck(entityType, entityId) {
-  return {
-    entityType,
-    entityId,
-    decision: "pass",
-    matchedBudgetControlRule: null,
-    budgetHint: null,
-    warnings: [],
-    blockingReasons: [],
-    riskFlags: [],
-    nextActions: ["功能未开启，沿用当前提交流程"],
-  };
-}
-
 function buildPrecheckBlockedError(precheck) {
   return new AppError({
     code: "VALID_001",
@@ -1464,29 +1450,13 @@ async function purchaseRequestRoutes(fastify) {
     },
     async (request, reply) => {
       const purchaseRequestId = parsePurchaseRequestId(request.params?.id);
-      const purchaseRequest = await fastify.prisma.purchaseRequest.findUnique({
-        where: { id: purchaseRequestId },
-        select: { id: true, department_id: true },
-      });
-      if (!purchaseRequest) {
-        throw new AppError({ code: "SYS_404", message: "Not Found", statusCode: 404 });
-      }
-
-      const gate = await evaluateFeatureFlag({
+      const precheck = await resolveEntityPrecheck({
         prisma: fastify.prisma,
         config: fastify.config,
-        flagKey: FEATURE_FLAG_KEYS.budgetPrecheck,
-        departmentId: purchaseRequest.department_id ?? request.employee.department_id ?? null,
-        strictDepartment: false,
-      });
-      if (!gate.enabled) {
-        return sendData(reply, request, buildDisabledPrecheck("purchase_request", purchaseRequestId));
-      }
-
-      const precheck = await buildPurchaseRequestPrecheck(fastify.prisma, {
-        purchaseRequestId,
-        config: fastify.config,
         logger: fastify.log,
+        entityType: "purchase_request",
+        entityId: purchaseRequestId,
+        actorDepartmentId: request.employee.department_id ?? null,
       });
       return sendData(reply, request, precheck);
     },
@@ -1517,20 +1487,14 @@ async function purchaseRequestRoutes(fastify) {
         });
       }
 
-      const budgetPrecheckGate = await evaluateFeatureFlag({
+      const authoritativePrecheck = await resolveEntityPrecheck({
         prisma: fastify.prisma,
         config: fastify.config,
-        flagKey: FEATURE_FLAG_KEYS.budgetPrecheck,
-        departmentId: unlockedPurchaseRequest.department_id ?? request.employee.department_id ?? null,
-        strictDepartment: false,
+        logger: fastify.log,
+        entityType: "purchase_request",
+        entityId: purchaseRequestId,
+        actorDepartmentId: request.employee.department_id ?? null,
       });
-      const authoritativePrecheck = budgetPrecheckGate.enabled
-        ? await buildPurchaseRequestPrecheck(fastify.prisma, {
-            purchaseRequestId,
-            config: fastify.config,
-            logger: fastify.log,
-          })
-        : buildDisabledPrecheck("purchase_request", purchaseRequestId);
       if (authoritativePrecheck.decision === "block") {
         throw buildPrecheckBlockedError(authoritativePrecheck);
       }