feat: add JSON format validation for findings and exclusions after processing

app/main.js

@@ -1,4 +1,6 @@
-import { GITEA_REPOSITORY, PR_NUMBER, PR_HEAD_BRANCH, PR_BASE_BRANCH, getLLMConfig } from './config.js';
+import fs from 'fs';
+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 } from './gitea.js';
 import { analyzeWithRole, loadOldFindings, mergeFindings, sortByLevel, deduplicateWithAI, loadExclusions, applyExclusions, filterFalsePositivesWithAI } from './findings.js';
@@ -60,6 +62,7 @@ async function main() {
 
   // Step3: 讀取舊 findings，合併去重（含 AI 語意去重）
   console.log('\n🔀 Step3: Findings 合併');
+  // Clone repo 以讀取舊 findings 與排除清單
   let repoDir;
   try {
     repoDir = cloneRepo(WORKSPACE);
@@ -77,6 +80,7 @@ async function main() {
 
   // Step4: 讀取排除問題檔案，過濾 PR 問題表格，並請 AI 判斷誤報
   console.log('\n🚫 Step4: AI 排除問題過濾');
+  // 輸入至 findings 用於 AI 誤報過濾，exclusions 同時作為已知誤報參考
   const exclusions = loadExclusions(repoDir || WORKSPACE);
   const ruleFiltered = applyExclusions(sorted, exclusions);
   const filtered = await filterFalsePositivesWithAI(ruleFiltered, exclusions);
@@ -94,6 +98,23 @@ async function main() {
     console.log(`  ⚠️  comment 發布失敗（繼續執行）: ${e.message}`);
   }
 
+  // Step5b: 驗證 findings.json 與 exclusions.json 為合法 JSON
+  console.log('\n🔎 Step5b: JSON 格式驗證');
+  for (const relPath of [FINDINGS_PATH, EXCLUSIONS_PATH]) {
+    const fullPath = path.join(repoDir || WORKSPACE, relPath);
+    if (!fs.existsSync(fullPath)) {
+      console.log(`  ⚠️  ${relPath} 不存在，跳過驗證`);
+      continue;
+    }
+    try {
+      JSON.parse(fs.readFileSync(fullPath, 'utf8'));
+      console.log(`  ✅ ${relPath} JSON 格式正確`);
+    } catch (e) {
+      console.error(`  ❌ ${relPath} JSON 格式錯誤: ${e.message}`);
+      process.exit(1);
+    }
+  }
+
   // Step6: commit/push findings.json 到來源分支
   console.log('\n💾 Step6: 記憶區 Commit/Push');
   await commitAndPush(WORKSPACE);