chore(release): bump CCSwitchMulti to v3.16.4-6

Prepare the v3.16.4-6 release from current main after the Codex OAuth Responses passthrough content-shape fix. Update all version surfaces: package.json, src-tauri/Cargo.toml, src-tauri/Cargo.lock, and src-tauri/tauri.conf.json.

Add Chinese release notes focused on the invalid input[n].content hotfix and record the release boundary in memory.md, including the versioned local export directory.

Pre-commit verification: pnpm typecheck; cargo fmt --manifest-path src-tauri/Cargo.toml --check; cargo test --manifest-path src-tauri/Cargo.toml codex_responses_request_normalizer --lib -- --nocapture; git diff --check.

Author: BigStrongSun

docs/release-notes/v3.16.4-6-zh.md

@@ -0,0 +1,22 @@
+# CCSwitchMulti v3.16.4-6
+
+v3.16.4-6 基于当前 `main` 发布，紧接 v3.16.4-5，重点修复 Codex OAuth / MultiRouter 直透官方 Codex backend 时的 Responses input 形态问题。
+
+## 重要修正
+
+- 修复 Codex `/responses` 直透 ChatGPT Codex OAuth backend 时，部分工具输出 item 携带冗余 `content` 字段导致 HTTP 400 的问题。
+- 该问题典型报错为：`Invalid 'input[3].content': array too long. Expected an array with maximum length 0, but got an array with length 1 instead.`
+- 修复边界限制在 official managed Codex OAuth passthrough normalizer：`message` / `reasoning` item 继续保留 `content`，`function_call_output`、`custom_tool_call_output`、`tool_search_output` 等非 message item 会删除多余 `content`，同时保留 `output`、`tools`、`call_id`、`status`、`execution` 等有效字段。
+- 不影响公开 OpenAI Responses API、第三方 Responses API，也不影响 Responses -> Chat 转换路径。
+
+## 验证
+
+- `cargo fmt --manifest-path src-tauri\Cargo.toml --check`
+- `cargo test --manifest-path src-tauri\Cargo.toml codex_responses_request_normalizer --lib -- --nocapture`
+- `cargo test --manifest-path src-tauri\Cargo.toml responses_request_to_chat_ --lib -- --nocapture`
+- `git diff --check`
+
+## 发布边界
+
+- 本 release 使用正式 tag `v3.16.4-6`。
+- Windows 本地构建会产出 NSIS installer、portable zip、raw exe、`latest.json` 和 SHA256；Linux / macOS 资产仍由对应平台或 GitHub Actions 补充。

memory.md

@@ -1,5 +1,11 @@
 # CC Switch Repository Memory
 
+## 2026-07-01 CCSwitchMulti v3.16.4-6 Release
+
+- v3.16.4-6 是 v3.16.4-5 后的热修正式发布，核心变更是 `fix(codex): strip invalid content from oauth response items`：Codex OAuth `/responses` 直透 ChatGPT backend 前会删除非 message/reasoning input item 上的冗余 `content`，避免 `Invalid input[3].content: array too long`。
+- 版本面必须同步更新 `package.json`、`src-tauri/Cargo.toml`、`src-tauri/Cargo.lock`、`src-tauri/tauri.conf.json`，release note 是 `docs/release-notes/v3.16.4-6-zh.md`。
+- 发布输出目录使用独立路径 `C:\Users\sunda\Documents\LLMservice\ccswitchmulti-release-v3.16.4-6`，不要复用默认“最新版ccswitchmulti”目录或清理旧 `output/release-*` / `scripts/logs/` 未跟踪目录。
+
 ## 2026-07-01 Codex OAuth Responses Passthrough Content Shape
 
 - 用户截图里的 `Invalid 'input[3].content': array too long. Expected an array with maximum length 0, but got an array with length 1 instead.` 发生在 Codex `/responses` 直透 ChatGPT Codex OAuth backend，日志特征是 `responses_to_chat=false`、`responses_to_messages=false`、`upstream_url=https://chatgpt.com/backend-api/codex/responses`。这不是第三方 Chat 转换问题，也不是模型容量问题。

package.json

@@ -1,6 +1,6 @@
 {
   "name": "cc-switch-multi",
-  "version": "3.16.4-5",
+  "version": "3.16.4-6",
   "description": "All-in-One Assistant for Claude Code, Codex & Gemini CLI",
   "type": "module",
   "scripts": {

src-tauri/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "cc-switch"
-version = "3.16.4-5"
+version = "3.16.4-6"
 description = "All-in-One Assistant for Claude Code, Codex & Gemini CLI"
 authors = ["Jason Young"]
 license = "MIT"

src-tauri/Cargo.toml

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "CCSwitchMulti",
-  "version": "3.16.4-5",
+  "version": "3.16.4-6",
   "identifier": "com.ccswitchmulti.desktop",
   "build": {
     "frontendDist": "../dist",