fix(Step9): 還原嚴重問題失敗流程

app/main.js

@@ -1,7 +1,7 @@
 import path from 'path';
 import { GITEA_REPOSITORY, PR_NUMBER, PR_HEAD_BRANCH, PR_BASE_BRANCH, getLLMConfig, FINDINGS_PATH, EXCLUSIONS_PATH } from './config.js';
 import { loadRoles, getRoleIntro } from './roles.js';
-import { getPRDiff, postComment, getCommitMessageBySha, getBotReviewOutcome, shouldSkipBotCommit, blockPRMergeWithStatus } from './gitea.js';
+import { getPRDiff, postComment, getCommitMessageBySha, getBotReviewOutcome, shouldSkipBotCommit } from './gitea.js';
 import { analyzeWithRole, loadOldFindings, mergeFindings, sortByLevel, deduplicateWithAI, loadExclusions, applyExclusions, filterFalsePositivesWithAI } from './findings.js';
 import { saveFindings, postFindingsReview } from './comments.js';
 import { cloneRepo, commitAndPush, getRepoState } from './git.js';
@@ -145,16 +145,7 @@ async function main() {
   step('Step9', '嚴重問題檢查');
   const criticalCount = filtered.filter(f => f.level === 'critical').length;
   if (criticalCount > 0) {
-    error(`發現 ${criticalCount} 個嚴重問題`);
-    try {
-      await blockPRMergeWithStatus({ sha: headSha, criticalCount });
-      ok('已透過 Gitea API 建立 failure status 阻擋 PR 合併');
-      section('Pipeline 結束');
-      process.exit(0);
-    } catch (e) {
-      warn(`透過 Gitea API 阻擋 PR 合併失敗，改用原本 workflow failure 處理: ${e.message}`);
-    }
-    error('workflow 結束（exit 1）');
+    error(`發現 ${criticalCount} 個嚴重問題，workflow 結束（exit 1）`);
     section('Pipeline 結束');
     process.exit(1);
   }