fix(cli): keep post-render exit reset root-owned

packages/cli/src/utils/render-success-state.ts

@@ -22,6 +22,8 @@
  * still exited 1 after the terminal "artifact validated" checkpoint.
  */
 
+import { sanitizeSuccessfulExitCode } from "./commandResult.js";
+
 let renderSucceeded = false;
 
 /**
@@ -57,8 +59,8 @@ const defaultErrorSink: PostRenderErrorSink = (message) => {
  * Run a post-artifact-validated cleanup step so a throw cannot flip the CLI
  * exit code. `markRenderSucceeded()` MUST have been called first — this
  * helper is only safe on the success path where the artifact is already
- * committed to disk. Logs a compact warning to stderr, resets a stray
- * `process.exitCode` back to 0, and swallows the error.
+ * committed to disk. Logs a compact warning to stderr, asks the root CLI to
+ * clear a stray exit code, and swallows the error.
  */
 export function runPostRenderStep(
   label: string,
@@ -87,9 +89,7 @@ export async function runPostRenderStepAsync(
 function reportPostRenderStepFailure(label: string, err: unknown, sink: PostRenderErrorSink): void {
   const message = err instanceof Error ? err.message : String(err);
   sink(`  [hyperframes] Post-render step '${label}' failed (render already succeeded): ${message}`);
-  // Guard against the failing step (or something it triggered) setting a
-  // non-zero exitCode. The render succeeded → the CLI must exit 0.
-  if (process.exitCode !== undefined && process.exitCode !== 0) {
-    process.exitCode = 0;
-  }
+  // The failing step (or something it triggered) may have set a non-zero
+  // exitCode. The render succeeded, so ask the root CLI owner to clear it.
+  sanitizeSuccessfulExitCode();
 }