fix(config): lock the ignored --no-workflow shim

Author: TheGreatAxios

src/config/index.ts

@@ -747,6 +747,7 @@ Flags:
                                the default settings file is machine-wide;
                                --config selects another source
   --auto / --no-auto          auto mode on/off
+  --no-workflow               deprecated and ignored
   --help, -h                  show this help
   --version, -V               show version
 `;
@@ -957,9 +958,9 @@ export async function loadConfig(
       auto = false;
       continue;
     }
-    // CL-10755: deprecated no-op retained for one release as warn-and-ignore
-    // so existing `--no-workflow` wrappers keep starting instead of hitting
-    // the catch-all "unrecognized flag" error below.
+    // Warn-and-ignore so existing `--no-workflow` wrappers keep starting
+    // instead of the unrecognized-flag error. Do not consume the next token
+    // or set a config field.
     if (arg === "--no-workflow") {
       process.stderr.write(
         "--no-workflow is deprecated and has no effect; ignoring.\n",

src/config/settings.test.ts

@@ -202,22 +202,29 @@ test("loadConfig --no-auto disables auto mode", async () => {
   });
 });
 
-// CL-10755: --no-workflow is a deprecated no-op. It must stay accepted for
-// one release (stderr warn-and-ignore) instead of hitting the catch-all
-// "unrecognized flag" error.
+// Warn-and-ignore: the flag must not consume the following task token or
+// change parsed command/auto versus the same argv without it.
 test("loadConfig --no-workflow warns and is ignored", async () => {
   await withSettings(async ({ cwd, globalSettingsPath }) => {
     const { impl } = offlineFetch();
     const stderr = captureStderr();
     try {
+      const options = {
+        globalSettingsPath,
+        pricing: { fetchImpl: impl },
+      };
       const config = await loadConfig(
         ["--cwd", cwd, "--no-workflow", "do something"],
-        {
-          globalSettingsPath,
-          pricing: { fetchImpl: impl },
-        },
+        options,
+      );
+      const baseline = await loadConfig(
+        ["--cwd", cwd, "do something"],
+        options,
       );
       expect(config.configured).toBe(true);
+      expect(config.task).toBe(baseline.task);
+      expect(config.command).toBe(baseline.command);
+      expect(config.auto).toBe(baseline.auto);
       expect(stderr.output()).toContain(
         "--no-workflow is deprecated and has no effect; ignoring.",
       );