fix: 持久化 runner 空闲保活策略

src/mgr/server.ts

@@ -46,6 +46,7 @@ function runnerJobDefaultsForRequest(defaults: ManagerServerOptions["runnerJobDe
     ...optionalStringRecord("envIdentity", defaults?.envIdentity ?? process.env.AGENTRUN_ENV_IDENTITY),
     ...optionalStringRecord("artifactCatalogFile", defaults?.artifactCatalogFile ?? process.env.AGENTRUN_ARTIFACT_CATALOG_FILE),
     serviceAccountName: defaults?.serviceAccountName ?? process.env.AGENTRUN_RUNNER_SERVICE_ACCOUNT ?? "agentrun-v01-runner",
+    ...(defaults?.runnerIdleTimeoutMs !== undefined ? { runnerIdleTimeoutMs: defaults.runnerIdleTimeoutMs } : optionalPositiveIntegerRecord("runnerIdleTimeoutMs", process.env.AGENTRUN_RUNNER_IDLE_TIMEOUT_MS)),
     ...(defaults?.kubectlCommand ? { kubectlCommand: defaults.kubectlCommand } : {}),
     ...(defaults?.unideskSshEndpointEnv ? { unideskSshEndpointEnv: defaults.unideskSshEndpointEnv } : {}),
   };
@@ -64,6 +65,7 @@ export interface ManagerServerOptions {
     envIdentity?: string;
     artifactCatalogFile?: string;
     serviceAccountName?: string;
+    runnerIdleTimeoutMs?: number;
     kubectlCommand?: string;
     unideskSshEndpointEnv?: JsonRecord;
   };
@@ -947,6 +949,13 @@ function optionalStringRecord(key: string, value: unknown): JsonRecord {
   return typeof value === "string" && value.trim().length > 0 ? { [key]: value.trim() } : {};
 }
 
+function optionalPositiveIntegerRecord(key: string, value: unknown): JsonRecord {
+  if (value === undefined || value === null || value === "") return {};
+  const parsed = Number(value);
+  if (!Number.isInteger(parsed) || parsed <= 0) throw new AgentRunError("schema-invalid", `${key} must be a positive integer`, { httpStatus: 400 });
+  return { [key]: parsed };
+}
+
 function normalizeError(error: unknown): AgentRunError {
   if (error instanceof AgentRunError) return error;
   return new AgentRunError("infra-failed", error instanceof Error ? error.message : String(error), { httpStatus: 500 });