fix: simplify short api key preview

Author: SaladDay

src/utils/prompt.ts

@@ -47,9 +47,9 @@ export async function promptText(options: {
 const API_KEY_VISIBLE_LENGTH = 30;
 
 export function apiKeyPreview(value: string): string {
+  if (value.length <= API_KEY_VISIBLE_LENGTH) return value;
   const visible = value.slice(0, API_KEY_VISIBLE_LENGTH);
-  const ellipsis = value.length > API_KEY_VISIBLE_LENGTH ? '....' : '';
-  return `${visible}${ellipsis} (${value.length} chars)`;
+  return `${visible}.... (${value.length} chars)`;
 }
 
 export async function promptApiKey(options: { message: string }): Promise<string | undefined> {

test/utils/prompt.test.ts

@@ -3,9 +3,9 @@ import { describe, expect, it } from 'bun:test';
 import { apiKeyPreview } from '../../src/utils/prompt';
 
 describe('apiKeyPreview', () => {
-  it('shows at most 30 key characters followed by the total length', () => {
-    expect(apiKeyPreview('abc')).toBe('abc (3 chars)');
-    expect(apiKeyPreview('a'.repeat(30))).toBe(`${'a'.repeat(30)} (30 chars)`);
+  it('shows the total length only when the key is truncated', () => {
+    expect(apiKeyPreview('abc')).toBe('abc');
+    expect(apiKeyPreview('a'.repeat(30))).toBe('a'.repeat(30));
     expect(apiKeyPreview('a'.repeat(125))).toBe(`${'a'.repeat(30)}.... (125 chars)`);
   });
 });