fix: support wrapped exclusions schema

app/findings.js

@@ -34,6 +34,12 @@ function readJSONArray(fullPath, label) {
   }
 }
 
+function normalizeExclusions(data) {
+  if (Array.isArray(data)) return data;
+  if (data && Array.isArray(data.excluded_findings)) return data.excluded_findings;
+  return [];
+}
+
 /**
  * 讀取舊 findings（從 workspace 的 FINDINGS_PATH）
  */
@@ -107,7 +113,21 @@ export async function deduplicateWithAI(findings) {
  * 讀取排除問題檔案（從 workspace 的 EXCLUSIONS_PATH）
  */
 export function loadExclusions(workspace) {
-  const exclusions = readJSONArray(path.join(workspace, EXCLUSIONS_PATH), '排除問題');
+  const fullPath = path.join(workspace, EXCLUSIONS_PATH);
+  if (!fs.existsSync(fullPath)) {
+    console.log('  排除問題檔案不存在，視為空');
+    console.log('  讀取排除問題: 0 筆');
+    return [];
+  }
+
+  let exclusions = [];
+  try {
+    const data = JSON.parse(fs.readFileSync(fullPath, 'utf8'));
+    exclusions = normalizeExclusions(data);
+  } catch (e) {
+    console.log(`  ⚠️  讀取排除問題失敗: ${e.message}，視為空`);
+    exclusions = [];
+  }
   console.log(`  讀取排除問題: ${exclusions.length} 筆`);
   return exclusions;
 }