Merge remote-tracking branch 'origin/master' into worktree/web-multimodal-image-input

# Conflicts:
#	docs/architecture.i18n.yaml
#	docs/architecture.md
#	docs/architecture.zh.md
#	docs/cordis-catalog/events.md
#	docs/cordis-catalog/services.md
#	docs/core-data-structures/core.i18n.yaml
#	docs/core-data-structures/llm-streaming.i18n.yaml
#	docs/event-producer-consumer.md
#	docs/module-graph.md
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl
#	packages/client/connection/README.i18n.yaml
#	packages/client/connection/README.md
#	packages/client/connection/README.zh.md
#	packages/client/connection/src/client/fixture.ts
#	packages/client/runtime/README.i18n.yaml
#	packages/client/runtime/README.md
#	packages/client/runtime/README.zh.md
#	packages/client/ui-conversation/README.i18n.yaml
#	packages/client/ui-conversation/src/client/chat/AssistantMarkdown.tsx
#	packages/client/ui-conversation/src/client/chat/ChatView.tsx
#	packages/host/apiproxy/README.i18n.yaml
#	packages/host/apiproxy/src/api-proxy.ts
#	packages/llm/llm-deepseek/tests/adapter.spec.ts
#	packages/llm/llm-pi-ai/README.i18n.yaml
#	packages/llm/llm-pi-ai/src/index.ts
#	packages/llm/llm/README.i18n.yaml
#	packages/llm/llm/README.md
#	packages/llm/llm/README.zh.md
#	packages/llm/llm/src/index.ts
#	packages/llm/llm/src/types.ts

docs/architecture.zh.md

@@ -96,7 +96,7 @@ forever:
       assemble system prompt and tool schemas
       snapshot the derived messages (the reconstruction boundary)
       'step/start'
-      agent/request (config only) -> prepare reasoning/default under turn signal -> log request/header -> llm/stream (frozen, registration-bound)
+      agent/request (config only) -> prepare adapter defaults/provenance under turn signal -> log request/header -> llm/stream (frozen, registration-bound)
       'assistant/chunk'
       'assistant/message'
       schedule tool calls by ctx.tools.executionMode:
@@ -145,7 +145,7 @@ idle inject:
 
 会话日志是权威依据。`deriveMessages()` 投影出模型历史；`assistant/chunk` 保证回放和 UI 保真。fork、恢复、transcript（文本记录）渲染、遥测和持久化均派生自该日志。
 
-**模型可见 ⟺ 已持久记录**：`step/start`、会话前缀、折叠后的 `request/header` 与不可变附件的日志引用共同重建请求。`dsh-agent-loop/invariant` 通过 `ctx.invariants` 断言重建，附件后端断言附件字节完整性（[决策](../.agents/notes/implemented/architecture/2026-07-05-reconstructable-requests.md)）。
+**模型可见 ⟺ 已持久记录**：`step/start` 时的消息、会话前缀、折叠后的 `request/header` 与不可变附件的日志引用共同重建每个请求；该 header 还会标记适配器填入的默认值，使下一次提议可以丢弃这些值并解析所选路由，同时不丢失显式对话设置。该包的 `dsh-agent-loop/invariant` 通过 `ctx.invariants` 断言可重建性，附件后端则断言附件字节完整性（[决策](../.agents/notes/implemented/architecture/2026-07-05-reconstructable-requests.md)）。
 
 插件负责持久性。后端会尽快排空同步的 `session/event` 通知。`session/flush` 屏障位于每次请求与顶层工具分发之前，并在 `turn/end` 之后、处理另一个已排队轮次或观察到空闲状态之前执行。`SessionPersistence` 直接存储 `SessionEvent`，并将元数据存入 `SessionHeader`；JSONL 默认采用带校验和的 Zstandard，SQLite 遵循同一契约（[决策](../.agents/notes/implemented/bug-fix/2026-07-21-semantic-session-checkpoints.md)）。