feat(ai-review 行號): 角色 prompt 強制行號，缺行號時反問原角色依 diff 定位（重試上限）

app/main.js

@@ -2,7 +2,7 @@ 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 } from './gitea.js';
-import { analyzeWithRole, loadOldFindings, mergeFindings, sortByLevel, deduplicateWithAI, loadExclusions, applyExclusions, filterFalsePositivesWithAI, appendExclusions } from './findings.js';
+import { analyzeWithRole, loadOldFindings, mergeFindings, sortByLevel, deduplicateWithAI, loadExclusions, applyExclusions, filterFalsePositivesWithAI, appendExclusions, resolveMissingLineNumbers } from './findings.js';
 import { reconcileConversations, dropResolvedFindings, addCarriedFindings } from './resolve.js';
 import { saveFindings, postFindingsReview, formatFindingsStatsLine } from './comments.js';
 import { getRunUsage, getRateLimit, fetchAccountQuota, formatUsageStats, formatUsageStatsLine } from './usage.js';
@@ -88,6 +88,8 @@ async function main() {
     if (analyses[i].status === 'fulfilled') newFindings.push(...analyses[i].value);
     else warn(`[${roles[i].name}] 分析失敗（跳過）: ${analyses[i].reason?.message}`);
   }
+  // 對只有檔名、缺行號的問題，反問原角色補上行號（最多重試數次），確保後續能行內標註
+  await resolveMissingLineNumbers(newFindings, diff);
   output(`新 findings ${newFindings.length} 筆（${formatFindingsStatsLine(newFindings)}）`);
 
   // Step6 合併與去重：舊問題 + 對話收斂結果 + 新問題 → 語意去重