refactor(pipeline 日誌): 步驟連號單一任務、輸入輸出與成敗訊息更明確、清除 bot-check 雜訊

app/preflight.js

@@ -11,7 +11,7 @@ import {
   getLLMConfig,
 } from './config.js';
 import { verifyRemoteAccess } from './git.js';
-import { step, line, ok, error } from './log.js';
+import { step, line, ok, error, result } from './log.js';
 
 const httpsAgent = GITEA_SKIP_TLS_VERIFY ? new https.Agent({ rejectUnauthorized: false }) : undefined;
 const api = (path) => `${GITEA_SERVER_URL.replace(/\/$/, '')}/api/v1${path}`;
@@ -175,6 +175,6 @@ export async function runPreflight(workspace = process.env.GITHUB_WORKSPACE || '
   if (llm.keyIndex) ok(`LLM provider=${llm.provider} 驗證通過（key ${llm.keyIndex}/${llm.total}）`);
   else ok(`LLM provider=${llm.provider} 連線正常`);
 
-  ok('前置驗證通過');
+  result(true, '前置驗證通過');
   return true;
 }