fix(onboard): clarify messaging skip prompt

src/lib/onboard.ts

@@ -7823,7 +7823,7 @@ async function setupMessagingChannels(
       output.write(`    [${i + 1}] ${marker} ${ch.name} — ${ch.description}${status}\n`);
     });
     output.write("\n");
-    output.write(`  Press 1-${availableChannels.length} to toggle, Enter when done: `);
+    output.write(`  Press 1-${availableChannels.length} to toggle, Enter when done (none selected skips): `);
   };
 
   showList();

test/onboard.test.ts

@@ -1838,6 +1838,18 @@ const { setupInference } = require(${onboardPath});
     );
   });
 
+  it("tells users that selecting no messaging channels skips the step", () => {
+    const source = fs.readFileSync(
+      path.join(import.meta.dirname, "..", "src", "lib", "onboard.ts"),
+      "utf-8",
+    );
+
+    assert.match(
+      source,
+      /Press 1-\$\{availableChannels\.length\} to toggle, Enter when done \(none selected skips\):/,
+    );
+  });
+
   it("migrates a legacy credentials.json into env so setupInference can register the provider", () => {
     const repoRoot = path.join(import.meta.dirname, "..");
     const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), "nemoclaw-onboard-resume-cred-"));