fix: report missing chart profile deletes

frontend/src/app/api/chart-profiles/[id]/route.ts

@@ -17,14 +17,17 @@ export async function DELETE(_request: Request, context: RouteContext) {
     const { data: { user } } = await supabase.auth.getUser();
     if (!user) return NextResponse.json({ error: "请先登录" }, { status: 401 });
 
-    const { error } = await supabase
+    const { count, error } = await supabase
       .from("chart_profiles")
-      .delete()
+      .delete({ count: "exact" })
       .eq("id", id)
       .eq("user_id", user.id)
       .eq("role", "other");
 
     if (error) throw error;
+    if (count !== 1) {
+      return NextResponse.json({ error: "星盘不存在或无权删除" }, { status: 404 });
+    }
     return NextResponse.json({ ok: true });
   } catch (error) {
     if (isSupabaseConfigurationError(error)) {

tests/test_supabase_user_data_contract.py

@@ -145,7 +145,10 @@ def test_chart_profile_library_has_cloud_table_api_and_local_fallback() -> None:
     ):
         assert token in route
     assert 'upsert(record, { onConflict: "id" })' not in route
+    assert '.delete({ count: "exact" })' in delete_route
     assert 'eq("role", "other")' in delete_route
+    assert "count !== 1" in delete_route
+    assert "星盘不存在或无权删除" in delete_route
 
     for token in (
         "fetchCloudChartLibrary",