fix(codex): restore version context for override failures

src/targets/codex-adapter.ts

@@ -14,6 +14,7 @@ import {
   codexBinarySupportsConfigOverrides,
   detectCodexCli,
   getCodexBinaryInfo,
+  readCodexVersion,
 } from './codex-detector';
 
 const CODEX_RUNTIME_PROVIDER_ID = 'ccs_runtime';
@@ -35,6 +36,17 @@ function buildConfigOverrideSupportError(binaryInfo?: TargetBinaryInfo): Error {
   );
 }
 
+function hydrateCodexBinaryVersion(binaryInfo?: TargetBinaryInfo): TargetBinaryInfo | undefined {
+  if (!binaryInfo || binaryInfo.version || !binaryInfo.path) {
+    return binaryInfo;
+  }
+
+  return {
+    ...binaryInfo,
+    version: readCodexVersion(binaryInfo.path),
+  };
+}
+
 function findDisallowedCodexManagedFlags(args: string[]): string[] {
   const disallowed = new Set<string>();
 
@@ -99,7 +111,7 @@ export class CodexAdapter implements TargetAdapter {
     if (profileType === 'default') {
       if (reasoningOverride) {
         if (!codexBinarySupportsConfigOverrides(options?.binaryInfo)) {
-          throw buildConfigOverrideSupportError(options?.binaryInfo);
+          throw buildConfigOverrideSupportError(hydrateCodexBinaryVersion(options?.binaryInfo));
         }
         return [
           ...buildConfigOverrideArgs([
@@ -112,7 +124,7 @@ export class CodexAdapter implements TargetAdapter {
     }
 
     if (!codexBinarySupportsConfigOverrides(options?.binaryInfo)) {
-      throw buildConfigOverrideSupportError(options?.binaryInfo);
+      throw buildConfigOverrideSupportError(hydrateCodexBinaryVersion(options?.binaryInfo));
     }
 
     if (!creds?.baseUrl?.trim() || !creds.apiKey?.trim()) {

src/targets/codex-detector.ts

@@ -45,7 +45,7 @@ function runCodexProbe(codexPath: string, args: string[]): string | undefined {
   }
 }
 
-function readCodexVersion(codexPath: string): string | undefined {
+export function readCodexVersion(codexPath: string): string | undefined {
   return runCodexProbe(codexPath, ['--version'])?.trim();
 }