Merge branch 'stack/agent-profiles-3-wire' into stack/agent-profiles-5-web-ui

The Client API carrier's `agentPresets` member was the one member of its class
without an `IApiClient[...]` annotation. Inferring it inlined `AgentPresetEntry`
into the emitted declaration by the specifier TS picks — the host `index.ts` —
dragging the whole gateway, and with it the host `Context` merges, into every
Client program importing the carrier. Annotated like its siblings.

`ApiRemoteAgentOptions.setup` now takes the inspected session rather than its
header alone: this layer resolves a resumed session's preset from the LOG,
because a session that switched while blank ran its turns under the newer
composition and the header is written once at creation.

Conflicts:
	apps/web/tests/snapshots/*/*.expected.md
	packages/client/ui-conversation/src/client/skeleton/InputBar.tsx
	packages/host/apiproxy/src/api-proxy.ts
	scripts/doc-budgets.manifest.json

docs/architecture.zh.md

@@ -48,6 +48,7 @@
 | `ctx.credentials` | [`credentials/`](../packages/credentials/README.md) | 具名密钥引用，按操作解析，绝不内联进配置 |
 | `ctx.directoryPicker` | [`host/directory-picker`](../packages/host/directory-picker/README.md) | GUI 宿主目录选取（`native`／`browse` 交互） |
 | `ctx.typert` | [`typert/registry`](../packages/typert/registry/README.md) | 生成的包反射和实时 Zod schema 的运行时注册表 |
+| `ctx.typertGateway` | [`api/gateway`](../packages/api/gateway/README.md) | 通过 [API Gateway](api-gateway.md) 分发 TypeRT Remote 一元调用 |
 | `ctx.invariants` | [`support/invariants`](../packages/support/invariants/README.md) | 按包名筛选包自有运行时检查的注册表 |
 
 ## 事件