fix: persist session workspace across runs

src/mgr/kubernetes-runner-job.ts

@@ -142,7 +142,9 @@ export async function createKubernetesRunnerJob(options: { store: AgentRunStore;
     const pvcName = refreshed?.storagePvcName ?? ensured.pvcName;
     if (!pvcName) throw new AgentRunError("infra-failed", `session ${run.sessionRef.sessionId} PVC was not resolved for runner job`, { httpStatus: 502 });
     const subdir = refreshed?.codexRolloutSubdir ?? ensured.codexRolloutSubdir ?? "sessions";
-    sessionPvc = { pvcName, namespace: refreshed?.storageNamespace ?? ensured.namespace ?? namespace, mountPath: `/home/agentrun/.codex-${run.backendProfile}/${subdir}`, codexRolloutSubdir: subdir };
+    const mountPath = `/home/agentrun/.codex-${run.backendProfile}/${subdir}`;
+    const workspacePath = `${mountPath}/agentrun-workspace`;
+    sessionPvc = { pvcName, namespace: refreshed?.storageNamespace ?? ensured.namespace ?? namespace, mountPath, codexRolloutSubdir: subdir, workspacePath };
     sessionPvcSummary = {
       sessionId: run.sessionRef.sessionId,
       pvcName: sessionPvc.pvcName,
@@ -150,6 +152,7 @@ export async function createKubernetesRunnerJob(options: { store: AgentRunStore;
       pvcPhase: refreshed?.storagePvcPhase ?? ensured.pvcPhase ?? null,
       mountPath: sessionPvc.mountPath,
       codexRolloutSubdir: sessionPvc.codexRolloutSubdir,
+      workspacePath: sessionPvc.workspacePath ?? null,
       valuesPrinted: false,
     };
     if (ensured.pvcPhase === "NotFound" || ensured.pvcPhase === "Unknown") {