refactor(cli): simplify auth type display in Header

- Add AuthDisplayType enum and helper for Coding Plan detection
- Remove formatAuthType/titleizeAuthType functions
- Update tests for new auth types

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

packages/cli/src/ui/components/AppHeader.tsx

@@ -5,16 +5,43 @@
  */
 
 import { Box } from 'ink';
-import { Header } from './Header.js';
+import { AuthType } from '@qwen-code/qwen-code-core';
+import { Header, AuthDisplayType } from './Header.js';
 import { Tips } from './Tips.js';
 import { useSettings } from '../contexts/SettingsContext.js';
 import { useConfig } from '../contexts/ConfigContext.js';
 import { useUIState } from '../contexts/UIStateContext.js';
+import { isCodingPlanConfig } from '../../constants/codingPlan.js';
 
 interface AppHeaderProps {
   version: string;
 }
 
+/**
+ * Determine the auth display type based on auth type and configuration.
+ */
+function getAuthDisplayType(
+  authType?: AuthType,
+  baseUrl?: string,
+  apiKeyEnvKey?: string,
+): AuthDisplayType {
+  if (!authType) {
+    return AuthDisplayType.UNKNOWN;
+  }
+
+  // Check if it's a Coding Plan config
+  if (isCodingPlanConfig(baseUrl, apiKeyEnvKey)) {
+    return AuthDisplayType.CODING_PLAN;
+  }
+
+  switch (authType) {
+    case AuthType.QWEN_OAUTH:
+      return AuthDisplayType.QWEN_OAUTH;
+    default:
+      return AuthDisplayType.API_KEY;
+  }
+}
+
 export const AppHeader = ({ version }: AppHeaderProps) => {
   const settings = useSettings();
   const config = useConfig();
@@ -27,12 +54,18 @@ export const AppHeader = ({ version }: AppHeaderProps) => {
   const showBanner = !config.getScreenReader();
   const showTips = !(settings.merged.ui?.hideTips || config.getScreenReader());
 
+  const authDisplayType = getAuthDisplayType(
+    authType,
+    contentGeneratorConfig?.baseUrl,
+    contentGeneratorConfig?.apiKeyEnvKey,
+  );
+
   return (
     <Box flexDirection="column">
       {showBanner && (
         <Header
           version={version}
-          authType={authType}
+          authDisplayType={authDisplayType}
           model={model}
           workingDirectory={targetDir}
         />