docs: rescan rebased documentation hierarchy

packages/client/runtime/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/runtime/README.md
-README.md: dd780369a1d888dde2579e436afe2ce1e6dcfdd1
-README.zh.md: 5574ad6452c6a2d94fb63da7e53b98e8d074f1c9
+README.md: e921b86379173df59575c7f4a43eaedacedb9585
+README.zh.md: b3ed3fbf86a7003e552ef82f78f8cc34d613ae17

packages/client/runtime/README.md

@@ -70,6 +70,6 @@ Changing the target can change or invalidate provider-side cache reuse; this pac
 
 ## Known Limitations and Deferred Work
 
-- **`loader.unload` is a stub (throws not-implemented)** — the full chain (fiber dispose → registration cascade → style removal) lands with the HMR project.
+- **`loader.unload` is a stub** — it throws not-implemented; the client has no unload chain from fiber disposal through registration and style removal.
 - **Scope teardown is stage-driven, single-occupant today** — the staged session follows `list.current` exactly (staging is the open signal: the event window opens ⟺ the session is on stage); a removed-while-staged session's scope survives frozen until the stage moves on, not until true observer count reaches zero. Resolution (`binding()`/`scope()`) is pure addressing, render-safe; the render layer reads the current bundle through the `currentProvideInfo` observable. The staged state can widen to a multi-pane list when concurrent panes land.
 - **Value imports of this package from plugin bundles must use the `/client` subpath** — the bare package name is not in the loader externals table and inlines a second module instance, whose private scope-tag Symbol never matches (the empty-state P0 postmortem).

packages/client/runtime/README.zh.md

@@ -70,6 +70,6 @@ Session 对象会在事件 wire 边界依据生产方的完整字段契约，验
 
 ## 已知限制与暂缓事项
 
-- **`loader.unload` 是 stub（抛出 not-implemented）**：完整链路（fiber dispose → 注册级联 → 样式移除）随 HMR（热模块替换）项目落地。
+- **`loader.unload` 是 stub**：它会抛出 not-implemented；客户端没有从 fiber dispose 到注册与样式移除的卸载链。
 - **scope 拆卸由阶段驱动，目前只能有一个占用者**：已 staged 的会话精确跟随 `list.current`（staging 就是打开信号：事件窗口打开 ⟺ 会话位于 stage）；在 staged 状态下被移除的会话，其 scope 会冻结保留，直到 stage 转向其他会话，而非直到真实观察者数量降为零。解析（`binding()`／`scope()`）只是纯寻址，可安全用于渲染；渲染层经 `currentProvideInfo` observable 读取当前 bundle。并发 pane 落地时，staged 状态可以扩展为多 pane 列表。
 - **插件组合包从该包导入值时必须使用 `/client` 子路径**：裸包名不在 loader externals 表中，会内联第二个模块实例；其私有 scope-tag Symbol 永远无法匹配。这是空状态 P0 的事故复盘（postmortem）所记录的问题。