fix: persist repaired exclusions

app/findings.test.js

@@ -60,6 +60,28 @@ describe('findings exclusions', () => {
     assert.ok(logs.some(line => line.includes('排除問題格式已修正為頂層陣列: source=exclusions -> array')));
   });
 
+  it('mirrors repaired exclusions into the workspace root when requested', () => {
+    const repoRoot = path.join(workspace, 'repo');
+    const mirrorRoot = path.join(workspace, 'workspace');
+    const repoFullPath = path.join(repoRoot, EXCLUSIONS_PATH);
+    const mirrorFullPath = path.join(mirrorRoot, EXCLUSIONS_PATH);
+    fs.mkdirSync(path.dirname(repoFullPath), { recursive: true });
+    fs.mkdirSync(path.dirname(mirrorFullPath), { recursive: true });
+    fs.writeFileSync(repoFullPath, JSON.stringify({
+      exclusions: [
+        { location: 'README.md:12', suggestion: 'keep' },
+      ],
+    }, null, 2));
+
+    const exclusions = loadExclusions(repoRoot, null, mirrorRoot);
+    const mirror = JSON.parse(fs.readFileSync(mirrorFullPath, 'utf8'));
+
+    assert.equal(exclusions.length, 1);
+    assert.ok(Array.isArray(mirror));
+    assert.equal(mirror[0].location, 'README.md:12');
+    assert.equal(mirror[0].suggestion, 'keep');
+  });
+
   it('applies exclusions loaded from wrapper format', () => {
     const findings = [
       { location: 'entrypoint.sh:180', role: 'Maya', suggestion: 'keep' },