docs(notes): date the mandatory projection-seam note 2026-08-19

The note was committed on 2026-08-19 but filed under 2026-08-07 while
building on the 08-19 state-and-client-views note; rename the triplet to
align the filename with the actual date and update the inbound
architecture links.

.agents/notes/implemented/architecture/2026-08-07-session-projection-mandatory-seam.i18n.yaml → .agents/notes/implemented/architecture/2026-08-19-session-projection-mandatory-seam.i18n.yaml

@@ -1,6 +1,6 @@
 # Bilingual-pair consistency record (docs/i18n/README.md): the git blob hash of each
 # 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 .agents/notes/implemented/architecture/2026-08-07-session-projection-mandatory-seam.md
-2026-08-07-session-projection-mandatory-seam.md: 6348ae9afdb1689cd4885e658651d1e5a1f44a4b
-2026-08-07-session-projection-mandatory-seam.zh.md: 95f3489275f67fc18a030345e120e2cb8c88c191
+#   pnpm run verify-translation-pairing --write .agents/notes/implemented/architecture/2026-08-19-session-projection-mandatory-seam.md
+2026-08-19-session-projection-mandatory-seam.md: 9edbece131cdc014f2cdf2ed0199b492b46b3ed1
+2026-08-19-session-projection-mandatory-seam.zh.md: e49081759682315f3503ee3114bebbf60c2d82e9

.agents/notes/implemented/architecture/2026-08-07-session-projection-mandatory-seam.md → .agents/notes/implemented/architecture/2026-08-19-session-projection-mandatory-seam.md

@@ -2,7 +2,7 @@
 
 Status: implemented
 
-English | [中文](2026-08-07-session-projection-mandatory-seam.zh.md)
+English | [中文](2026-08-19-session-projection-mandatory-seam.zh.md)
 
 ## Problem
 

.agents/notes/implemented/architecture/2026-08-07-session-projection-mandatory-seam.zh.md → .agents/notes/implemented/architecture/2026-08-19-session-projection-mandatory-seam.zh.md

@@ -2,7 +2,7 @@
 
 Status: implemented
 
-[English](2026-08-07-session-projection-mandatory-seam.md) | 中文
+[English](2026-08-19-session-projection-mandatory-seam.md) | 中文
 
 ## 问题
 

docs/architecture.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 docs/architecture.md
-architecture.md: 3ad9dec77f59af84594057e74602a1cc6c31dd18
-architecture.zh.md: e3e2128a71fd9b3abe915e9af2bfe1322f450661
+architecture.md: 764cc1a88fec2629689d7cece4943b2a9af4ab46
+architecture.zh.md: 88b2725a64bf05614453602c067379309d19e94f

docs/architecture.md

@@ -95,7 +95,7 @@ The session log is the source of the context the model sees. `deriveMessages()`
 
 **Model-visible means logged.** Anything that reaches a model request must be reconstructable from the log, and a runtime invariant asserts it. This is why a new model-visible input requires a new session event: extend `SessionEventMap` and render from the log.
 
-**Projection seam.** `dsh-session-projection` owns `ctx.sessionProjections`: registered units fold committed events incrementally, host consumers read one typed state with `stateOf()`, and carriers batch cropped client views with `snapshot()`. Projection contributors and readers require this service, so an incomplete composition fails during activation. The agent loop registers shared `turnBoundary` state instead of making each consumer scan the log ([decision](../.agents/notes/implemented/architecture/2026-08-07-session-projection-mandatory-seam.md)).
+**Projection seam.** `dsh-session-projection` owns `ctx.sessionProjections`: registered units fold committed events incrementally, host consumers read one typed state with `stateOf()`, and carriers batch cropped client views with `snapshot()`. Projection contributors and readers require this service, so an incomplete composition fails during activation. The agent loop registers shared `turnBoundary` state instead of making each consumer scan the log ([decision](../.agents/notes/implemented/architecture/2026-08-19-session-projection-mandatory-seam.md)).
 
 ## Capability seams
 

docs/architecture.zh.md

@@ -99,7 +99,7 @@ turn/end
 
 **模型可见即已记录。** 抵达模型请求的一切都必须能从日志重建，并由一项运行时不变量断言这一点。因此，新增一项模型可见输入就需要新增一个会话事件：扩展 `SessionEventMap` 并从日志渲染。
 
-**投影 seam。** `dsh-session-projection` 提供 `ctx.sessionProjections`：已注册单元增量折叠已提交事件，host 消费方通过 `stateOf()` 读取单个类型化状态，载体通过 `snapshot()` 批量取得裁剪后的客户端视图。投影贡献方和读取方都要求该服务，因此不完整的组合会在激活时失败。agent loop 注册共享的 `turnBoundary` 状态，避免每个消费方各自扫描日志（[决策](../.agents/notes/implemented/architecture/2026-08-07-session-projection-mandatory-seam.md)）。
+**投影 seam。** `dsh-session-projection` 提供 `ctx.sessionProjections`：已注册单元增量折叠已提交事件，host 消费方通过 `stateOf()` 读取单个类型化状态，载体通过 `snapshot()` 批量取得裁剪后的客户端视图。投影贡献方和读取方都要求该服务，因此不完整的组合会在激活时失败。agent loop 注册共享的 `turnBoundary` 状态，避免每个消费方各自扫描日志（[决策](../.agents/notes/implemented/architecture/2026-08-19-session-projection-mandatory-seam.md)）。
 
 ## 能力 seam