fix(llm): bind reasoning resolution to adapter lifecycle

docs/cookbook/adding-an-llm-adapter.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
-adding-an-llm-adapter.md: 3adae89f360cd81e264912d74bd86f5a06cd42f8
-adding-an-llm-adapter.zh.md: 80329da5e7c89bfb5ee2e2aa5b9931a3ef0e83f6
+adding-an-llm-adapter.md: 76bcfdd6638ef8b40977a5e1fe4f678648c043cd
+adding-an-llm-adapter.zh.md: 13ae388bb0c6f29ab6269f364b849cb1694e2ef2

docs/cookbook/adding-an-llm-adapter.md

@@ -32,7 +32,7 @@ Registration is effect-based (HMR-safe); one adapter per provider route — dupl
 - A `GenerateOptions` field your provider cannot honor (e.g. a `stop` list on a provider without stop sequences): throw `LlmError(..., 'UNSUPPORTED')` rather than silently dropping it.
 - If the provider requires response ids, signatures, or other native metadata on follow-up calls, emit the minimal lossless-JSON projection as `finish.replayState`. Validate it when rebuilding history. `LlmService` passes it only when the historical provider route and target provider route are currently owned by the exact same adapter instance; your adapter decides whether same-model, cross-model, or cross-provider restoration is legal. Never infer native replay from provider/model names alone when state is absent.
 
-Provider-specific thinking-mode toggles remain in the adapter's Config. Selectable reasoning strength uses the provider-neutral capability seam: return ordered opaque ids from `resolveModelReasoning()`, declare a configured `defaultEffort` only when one exists, and map `GenerateOptions.reasoningEffort` to the provider wire value. Do not expose provider wire spellings, clamp unsupported values, or include an `off` mode as an effort.
+Provider-specific thinking-mode toggles remain in the adapter's Config. Selectable reasoning strength uses the provider-neutral capability seam: return ordered opaque ids from `resolveModelReasoning()`, declare a configured `defaultEffort` only when one exists, honor the resolver's optional `AbortSignal`, and map `GenerateOptions.reasoningEffort` to the provider wire value. Do not expose provider wire spellings, clamp unsupported values, or include an `off` mode as an effort.
 
 ## Structure that worked
 

docs/cookbook/adding-an-llm-adapter.zh.md

@@ -32,7 +32,7 @@ export function apply(ctx: Context, config: Config) {
 - 如果 `GenerateOptions` 中某个字段你的提供方无法支持（例如提供方不支持 stop sequences 时收到 `stop` 列表）：抛出 `LlmError(..., 'UNSUPPORTED')`，而非静默丢弃。
 - 如果提供方在后续调用中需要响应 ID、签名或其他原生元数据，请将其最小无损 JSON 投影作为 `finish.replayState` 发出。重建历史时验证该状态。只有历史提供方路由和目标提供方路由当前由完全相同的适配器实例拥有时，`LlmService` 才会传递该状态；由适配器决定同模型、跨模型或跨提供方恢复是否合法。状态缺失时，切勿仅根据提供方/模型名称推断原生回放。
 
-提供方特有的 thinking 模式开关仍放在适配器的 Config 中。可选的推理强度使用提供方无关的能力 seam：`resolveModelReasoning()` 返回有序的不透明 ID；仅当存在配置指定的默认值时才声明 `defaultEffort`；并将 `GenerateOptions.reasoningEffort` 映射为提供方协议值。不得暴露提供方协议值的具体拼写、自动调整不支持的值，也不得把 `off` 模式列为推理强度。
+提供方特有的 thinking 模式开关仍放在适配器的 Config 中。可选的推理强度使用提供方无关的能力 seam：`resolveModelReasoning()` 返回有序的不透明 ID；仅当存在配置指定的默认值时才声明 `defaultEffort`；响应传给解析器的可选 `AbortSignal`；并将 `GenerateOptions.reasoningEffort` 映射为提供方协议值。不得暴露提供方协议值的具体拼写、自动调整不支持的值，也不得把 `off` 模式列为推理强度。
 
 ## 经验证有效的结构