fix(cli): set non-zero exit code on argument errors (#60923)

Merged via squash.

Prepared head SHA: 0de0c43111
Co-authored-by: Linux2010 <35169750+Linux2010@users.noreply.github.com>
Co-authored-by: altaywtf <9790196+altaywtf@users.noreply.github.com>
Reviewed-by: @altaywtf

src/cli/program/build-program.ts

@@ -1,3 +1,4 @@
+import process from "node:process";
 import { Command } from "commander";
 import { registerProgramCommands } from "./command-registry.js";
 import { createProgramContext } from "./context.js";
@@ -8,6 +9,13 @@ import { setProgramContext } from "./program-context.js";
 export function buildProgram() {
   const program = new Command();
   program.enablePositionalOptions();
+  // Preserve Commander-computed exit codes while still aborting parse flow.
+  // Without this, commands like `openclaw sessions list` can print an error
+  // but still report success when exits are intercepted.
+  program.exitOverride((err) => {
+    process.exitCode = typeof err.exitCode === "number" ? err.exitCode : 1;
+    throw err;
+  });
   const ctx = createProgramContext();
   const argv = process.argv;