fix: execute typed members callback / 修复类型化成员回调执行

[tiye]

中文

关联 #63、calcit-lang/calcit#1529。修复一个已在正式 Calcit 0.27.0 复现的业务回调错误；不关闭完整路由迁移任务。

修改

twig-members 的 hint-fn 与实际 twig-member-entry 调用改为函数体内的同级表达式。hint-fn 返回 Nil，是类型元数据，不会执行/返回嵌在第二个参数里的回调 body。保留现有 Map<Number,String>、MapEntryDecision 与 keep/drop 合同，不添加 unsafe、扩大 Dynamic、转换业务 key 或改动路由协议。

新增 definition :tests，通过真实 nominal User/Session 构造器检查非空成员映射、数字键、无登录用户、缺失用户和空输入。类型断言只标记这些已构造值与空 Map 的精确集合合同，不替不可信数据补证明。原有 21 项测试不修改。

验证

• 同一个新测试在原写法下失败：match expected an enum value, got: nil；修复后通过。使用正式 Calcit 0.27.0。
• 正式 0.27.0：server 全部 22 项附带测试通过，browser/server 严格入口、app.twig.container 公开定义、完整 browser JS 生成与格式检查通过。
• 查询实际附带测试的未截断 Cirru 表达式，在独立 Snapshot 用 CLI 构建回放入口；生成 JS 使用已发布 @calcit/procs 0.27.0，原断言全部通过。临时入口、脚本和生成产物不提交。
• unreleased Calcit #1723 候选：该附带测试与完整 server 入口检查通过；原写法会在类型检查时报 Nil 回调不匹配。未升级项目版本或依赖。

本地模块与 npm 依赖通过只读链接使用现有缓存；没有修改原用户项目。Actions 会重新安装 deps.cirru 与 yarn.lock 的版本，作为干净依赖组合验证。未声称实际浏览器/WebSocket、完整路由 payload 迁移或正式 0.28/0.29 升级完成。

English

Refs #63 and calcit-lang/calcit#1529. Fix an application callback bug reproduced with published Calcit 0.27.0; this does not close the broader route migration.

Changes

Make the hint-fn metadata and twig-member-entry call sibling expressions in twig-members. The hint returns Nil rather than executing/returning a body nested as its second argument. Preserve Map<Number,String>, MapEntryDecision and keep/drop contracts; no unsafe additions, wider Dynamic, business-key conversions or protocol changes.

Add a definition-attached test using real nominal User/Session constructors to exercise nonempty mapping, numeric keys, unauthenticated/missing users and empty inputs. Assertions annotate the exact collection contracts of already-constructed values/empty Maps, not untrusted data. The existing 21 tests remain unchanged.

Validation

• The identical new test fails on the original source with match expected an enum value, got: nil, then passes after the fix, using released Calcit 0.27.0.
• On 0.27.0: all 22 server attached tests pass; browser/server strict entries, public twig definitions, full browser JS generation and formatting pass.
• Replay the actual untruncated attached Cirru expressions through a CLI-created entry in an isolated Snapshot. Generated JS with published @calcit/procs 0.27.0 passes the original assertions. Temporary entry/scripts/output are not committed.
• The unreleased #1723 compiler candidate passes this attached test and the whole server entry; original source fails its type check with the Nil callback mismatch. Project/dependency versions are unchanged.

Local Calcit/npm dependencies are existing caches linked read-only; original user projects are untouched. Actions will reinstall the versions declared in deps.cirru/yarn.lock for clean-combination validation. No actual browser/WebSocket, complete route-payload migration or released 0.28/0.29 upgrade acceptance is claimed.

[tiye]

@coderabbitai review