docs: update streaming default to false and remove streamingConfig in changelogs

CHANGELOG.md

@@ -12,7 +12,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/).
 - **Stream message API `sendC2CStreamMessage`**: Low-level wrapper for QQ Open Platform `/v2/users/{openid}/stream_messages` endpoint, with `replace` input mode, incremental `msg_seq`/`index`, and `GENERATING`/`DONE` state signaling.
 - **`ApiError` structured error class**: API request errors now carry `status` (HTTP code) and `path`, enabling callers (e.g. streaming controller) to branch on status for retry vs. fallback decisions.
 - **Media send queue module `media-send.ts`**: Extracted media-tag parsing, path-encoding fix, and send-queue execution into a shared utility used by both `outbound.ts` (static mode) and `streaming.ts` (streaming mode), eliminating ~100 lines of duplication.
-- **Streaming configuration**: New `streaming` (boolean, default `true`) and `streamingConfig.throttleMs` options in account config for per-account streaming control.
+- **Streaming configuration**: New `streaming` (boolean, default `false`) option in account config for per-account streaming control. Set `streaming: true` to enable.
 - **Unit tests**: Added `strip-incomplete-media-tag.test.ts` and `streaming-controller.test.ts`.
 
 ### Changed

CHANGELOG.zh.md

@@ -12,7 +12,7 @@
 - **流式消息 API `sendC2CStreamMessage`**：封装 QQ 开放平台 `/v2/users/{openid}/stream_messages` 接口，支持 `replace` 输入模式、递增 `msg_seq`/`index` 序号、`GENERATING`/`DONE` 状态信令。
 - **`ApiError` 结构化错误类**：API 请求错误现在携带 `status`（HTTP 状态码）和 `path`，使调用方（如流式控制器）可根据状态码决定重试或降级策略。
 - **媒体发送队列模块 `media-send.ts`**：将媒体标签解析、路径编码修复、发送队列执行器抽取为公共工具模块，供 `outbound.ts`（静态模式）和 `streaming.ts`（流式模式）共用，消除约 100 行重复代码。
-- **流式消息配置项**：账户配置新增 `streaming`（布尔值，默认 `true`）和 `streamingConfig.throttleMs` 选项，支持按账户控制流式消息开关和节流间隔。
+- **流式消息配置项**：账户配置新增 `streaming`（布尔值，默认 `false`）选项，设置为 `true` 可开启流式消息。
 - **单元测试**：新增 `strip-incomplete-media-tag.test.ts` 和 `streaming-controller.test.ts`。
 
 ### 变更