feat(G2-1,G2-2,G2-3): 扩展预算编号与工作流跨域桥接

server/prisma/migrations/20260307103516_g2_cross_domain_bridge/migration.sql

@@ -0,0 +1,25 @@
+-- AlterTable
+ALTER TABLE "budget_ledger_entries" ADD COLUMN     "entity_id" UUID,
+ADD COLUMN     "entity_type" VARCHAR(32);
+
+-- AlterTable
+ALTER TABLE "budget_pools" ADD COLUMN     "cost_center_id" UUID,
+ADD COLUMN     "legal_entity_id" UUID;
+
+-- AlterTable
+ALTER TABLE "workflow_instances" ADD COLUMN     "purchase_request_id" UUID;
+
+-- CreateIndex
+CREATE INDEX "idx_budget_ledger_entity" ON "budget_ledger_entries"("entity_type", "entity_id");
+
+-- CreateIndex
+CREATE INDEX "idx_budget_pools_scope_status" ON "budget_pools"("legal_entity_id", "cost_center_id", "status");
+
+-- CreateIndex
+CREATE INDEX "workflow_instances_purchase_request_id_idx" ON "workflow_instances"("purchase_request_id");
+
+-- AddForeignKey
+ALTER TABLE "budget_pools" ADD CONSTRAINT "budget_pools_legal_entity_id_fkey" FOREIGN KEY ("legal_entity_id") REFERENCES "legal_entities"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "budget_pools" ADD CONSTRAINT "budget_pools_cost_center_id_fkey" FOREIGN KEY ("cost_center_id") REFERENCES "cost_centers"("id") ON DELETE SET NULL ON UPDATE CASCADE;