docs(policy): describe constructor-seeded inheritance

The implementation no longer stores inherited policy in SessionHeader or resolves a second baseline chain, but the feature, sandbox, and approval notes still described that machinery. Keeping those claims would make the smaller design look incomplete and invite reintroduction of the generic persistence surface. Rewrite the owning feature note around the actual delegation snapshot: source-tagged policy events follow the optional fork prefix, ordinary last-event-wins folds establish precedence, and persistence captures the constructor seed with the first materialized batch. Condense the alternatives and consequences to the decisions and coverage that remain load-bearing. Align the sandbox and approval notes plus the subagent-inprocess consumer README with that contract. Update the four Chinese counterparts minimally and re-record each pairing hash so both languages describe the same shipped mechanism.
2026-07-28 21:51:13 +08:00
parent db0b43bf86
commit 6d389d261e
12 changed files with 45 additions and 51 deletions
@@ -89,12 +89,10 @@ Landlock launcher 源码和包工作区位于 `native/landlock-run`，与 harnes
 #### 按会话模式：会话日志即存储

 ```
-effective(session) = findLast(the session's OWN post-seed knob events)?.value
-                  ?? the inherited SessionHeader baseline
-                  ?? the composition-config default
+effective(session) = findLast(the session's knob events)?.value ?? the composition-config default
 ```

-默认值是组合配置（`cordis.yml`）——运维人员拥有，进程范围。运行时切换是会话范围的覆盖，记录为该会话自身日志中的一条仅日志事件；中间层是 subagent 子 agent 的会话头所携带的委派基线。重启免疫（恢复会话时回放其日志并还原其会话头，覆盖自然恢复，无需追赶机制）和多会话隔离都是构造性的自然结果，且不存在任何外部配置存储。隔离并不使委派成为逃生通道：进程内 subagent 驱动器在委派时同步捕获发起委派的父级的有效覆盖，并将其带入每个子 agent 创建时的 `SessionHeader`（`sandboxMode`/`approvalPolicy`），因此收紧后的父级会约束 spawn 子 agent、fork 子 agent 与孙代 agent，且不存在任何第一轮次的时序窗口（[subagent 策略继承 Agent Note](2026-07-25-subagent-policy-inheritance.md)）。
+默认值是组合配置（`cordis.yml`）——由运维人员拥有、作用于整个进程。运行时切换是会话范围的覆盖，以一条仅日志事件记录在该会话的日志中。重启免疫与多会话隔离由回放自然保证，且不存在任何外部配置存储。进程内 subagent 驱动器在委派时对父级的显式覆盖项获取快照，并在子 agent 可选的 fork 前缀之后预置一条带来源标记的事件，因此委派无法回退到更宽的默认值（[决策](2026-07-25-subagent-policy-inheritance.md)）。

 **每个旋钮一种事件，由其领域拥有**——这是每个既有事件族已遵循的可合并扩展 `SessionEventMap` 惯用法（`dsh-user-approval` 中的 `approval/*`、hooks 包中的 `hook/*`）：