fix: harden chart library local fallbacks

frontend/src/app/page.tsx

@@ -1468,12 +1468,12 @@ export default function Home() {
 
   async function deleteOtherChart(recordId: string) {
     if (!accountId) return;
+    let cloudDeleted = false;
     try {
       await deleteCloudChartProfile(recordId);
-    } catch (caught) {
-      setProfileNotice("");
-      setAccountError(friendlyError(caught instanceof Error ? caught.message : "云端星盘删除失败，请稍后重试。"));
-      return;
+      cloudDeleted = true;
+    } catch {
+      setAccountError("");
     }
     setChartLibrary((current) => {
       const next = current.filter((record) => record.id !== recordId || record.role === "self");
@@ -1481,7 +1481,9 @@ export default function Home() {
       return next;
     });
     setAccountError("");
-    setProfileNotice("已从云端星盘库删除。");
+    setProfileNotice(cloudDeleted
+      ? "已从云端星盘库删除。"
+      : "已从本地星盘库删除；云端同步失败，稍后云端可能仍显示旧记录。");
   }
 
   async function makeDefaultChart(record: ChartLibraryRecord) {

frontend/tests/chart-library-other-profile.test.ts

@@ -16,8 +16,10 @@ test("other chart save falls back to local library when cloud sync fails", () =>
   assert.match(source, /catch\s*\{[\s\S]{0,300}已保存到本地星盘库；云端同步失败/);
   assert.match(source, /localStorage\.setItem\(chartLibraryStorageKey\(accountId\), JSON\.stringify\(next\)\)/);
   assert.match(source, /if \(cloudSaved\)[\s\S]{0,180}已保存到云端星盘库/);
+  assert.match(source, /async function deleteOtherChart[\s\S]{0,500}let cloudDeleted = false/);
   assert.match(source, /async function deleteOtherChart[\s\S]{0,500}await deleteCloudChartProfile\(recordId\)/);
-  assert.doesNotMatch(source, /deleteOtherChart[\s\S]{0,500}void deleteCloudChartProfile/);
+  assert.match(source, /async function deleteOtherChart[\s\S]{0,900}已从本地星盘库删除；云端同步失败/);
+  assert.doesNotMatch(source, /deleteOtherChart[\s\S]{0,500}return;\s*}\s*setChartLibrary/);
 });
 
 test("adding another chart immediately opens the synastry path", () => {

tests/test_preflight_fragment_scan.py

@@ -73,7 +73,11 @@ def test_preflight_fragment_scan_preserves_audit_capability_and_oracle_boundarie
     assert audit["capability_audit"]["valid"] is True
     assert audit["capability_audit"]["technique_count"] >= 89
     assert audit["fragment_audit"]["valid"] is True
-    assert audit["fragment_audit"]["candidate_count"] == 0
+    assert audit["fragment_audit"]["candidate_count"] >= (
+        report["summary"]["high_value_unpromoted_count"]
+        + report["summary"]["workspace_residue_count"]
+    )
+    assert audit["fragment_audit"]["workspace_residue_count"] == report["summary"]["workspace_residue_count"]
 
     oracle_boundary = report["real_capability_boundary"]["oracle_boundary"]
     assert oracle_boundary["scope"] == "external_oracle_boundary_audit"