feat(P16C-1,P16C-3): 完成供应商主数据后端与种子

server/prisma/migrations/20260307093703_p16c_suppliers/migration.sql

@@ -0,0 +1,32 @@
+-- CreateTable
+CREATE TABLE "suppliers" (
+    "id" UUID NOT NULL,
+    "code" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "short_name" TEXT,
+    "tax_no" TEXT,
+    "contact_name" TEXT,
+    "contact_phone" TEXT,
+    "payment_terms" TEXT,
+    "legal_entity_id" UUID,
+    "enabled" BOOLEAN NOT NULL DEFAULT true,
+    "archived_at" TIMESTAMP(3),
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "created_by" UUID,
+    "updated_at" TIMESTAMP(3) NOT NULL,
+    "updated_by" UUID,
+
+    CONSTRAINT "suppliers_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "suppliers_code_key" ON "suppliers"("code");
+
+-- CreateIndex
+CREATE INDEX "idx_suppliers_legal_entity_status" ON "suppliers"("legal_entity_id", "enabled", "archived_at");
+
+-- CreateIndex
+CREATE INDEX "idx_suppliers_name" ON "suppliers"("name");
+
+-- AddForeignKey
+ALTER TABLE "suppliers" ADD CONSTRAINT "suppliers_legal_entity_id_fkey" FOREIGN KEY ("legal_entity_id") REFERENCES "legal_entities"("id") ON DELETE SET NULL ON UPDATE CASCADE;