fix(filelib): 恢复撞名不再死锁,自动改名「(已恢复)」(ADR-0033)

- restore 前查活跃兄弟:撞名则恢复为「原名(已恢复[/ N])」(截断计入
  128 长度预算),同事务落审计并记 renamedFrom;API 返回最终名
- BinView toast 提示改名;测试补撞名/二次恢复用例

hub/src/database/routes/binRoutes.ts

@@ -25,8 +25,7 @@ export async function registerBinRoutes(app: FastifyInstance, deps: FileLibRoute
     if (actor === null) return reply;
     try {
       const { id } = request.params as { id: string };
-      await restoreBinEntry(svc, actor, id);
-      return reply.status(204).send();
+      return await restoreBinEntry(svc, actor, id);
     } catch (error) {
       return sendRouteError(reply, error);
     }