feat: 完成P13治理收尾并创建P14执行合同（Issue: P13-1,P13-2,P13-3,P13-4,P13-5,P13-6,P13-7,P13-8,P14-0）

server/src/config.js

@@ -66,6 +66,7 @@ function getConfig() {
     s3SecretAccessKey: process.env.S3_SECRET_ACCESS_KEY ?? "",
     s3ForcePathStyle: process.env.S3_FORCE_PATH_STYLE === "true",
     serveClientDist: process.env.SERVE_CLIENT_DIST === "true",
+    openapiDocsEnabled: process.env.OPENAPI_DOCS_ENABLED === "true",
     clientDistDir: path.resolve(serverRoot, clientDistDir),
     signedUrlTtlSeconds: Number(process.env.SIGNED_URL_TTL_SECONDS ?? 600),
     maxUploadSizeBytes: Number(process.env.MAX_UPLOAD_SIZE_BYTES ?? 10 * 1024 * 1024),