docs(web): clarify retained subagent status sources

packages/client/ui-session/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/ui-session/README.md
-README.md: 22ece0c11eee6b2a59acbbd8c5a9650b593a7da4
-README.zh.md: 4b52bef28ad065a7ff10f468056723c4d301a0a0
+README.md: df85bf42b0eb6507662ab4e4a26d1fde6e08872e
+README.zh.md: 5f54c1db7b5daf2d113717d890dc90eeb2be87f9

packages/client/ui-session/README.md

@@ -10,7 +10,7 @@ English | [中文](README.zh.md)
 
 Use this package to expose Session catalog, retain information, and unified UI status through standard Slot hooks. It materializes per-`SessionBinding` hooks and props, while `SessionProvider` can inherit an outer binding or bind an explicit `SessionReference`. It owns process-local pending-interaction and completion-reminder policy without owning Controller transport, history, or references.
 
-Running status comes from Host list baselines or status events. Catalog rows and local fallback rows do not establish running status; main view references still acknowledge completions.
+Running status comes from Host list baselines or status events. Subagent catalog rows and retained subagent fallback rows do not establish running status; main view references still acknowledge completions.
 
 ## Table of Contents
 

packages/client/ui-session/README.zh.md

@@ -10,7 +10,7 @@ kind: "package-reference"
 
 使用本包可通过标准 Slot 钩子公开 Session catalog、retain 信息与统一 UI 状态。它按 `SessionBinding` 物化钩子和 prop，而 `SessionProvider` 可以继承外围 binding 或绑定显式 `SessionReference`。它拥有进程本地的 pending-interaction 与完成提醒策略，但不拥有 Controller transport、历史或 reference。
 
-运行状态来自 Host 列表基线或状态事件。目录和保留代际的 fallback 行不会建立运行状态；主视图引用仍会确认完成提醒。
+运行状态来自 Host 列表基线或状态事件。Subagent 目录行和已保留子会话的 fallback 行不会建立运行状态；主视图引用仍会确认完成提醒。
 
 ## 目录
 

packages/client/ui-session/src/client/index.ts

@@ -493,7 +493,7 @@ export class UiSession extends Service {
   private reconcileStatus(): void {
     const list = this.sessions.list.getSnapshot()
     const present = new Set(Object.keys(list.byId) as SessionId[])
-    // Rows from catalogs and retained Client bindings do not establish Host running state.
+    // Subagent catalog rows and retained subagent fallback rows do not establish Host running state.
     for (const id of list.ids) {
       const row = list.byId[id] as SessionSummary
       const previous = this.running.get(id)