feat: add optional ChatGPT agent runtime

.github/workflows/ci.yml

@@ -47,6 +47,9 @@ jobs:
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
 
+      - name: Validate Codex App Server manifest
+        run: pnpm check:codex-runtime
+
       - name: Typecheck
         run: pnpm typecheck
 

.github/workflows/p0-release-candidate.yml

@@ -52,6 +52,9 @@ jobs:
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
 
+      - name: Validate Codex App Server manifest
+        run: pnpm check:codex-runtime
+
       - name: Typecheck
         run: pnpm typecheck
 

.github/workflows/release.yml

@@ -198,6 +198,17 @@ jobs:
       - name: Typecheck
         run: pnpm typecheck
 
+      - name: Prepare embedded Codex App Server
+        shell: bash
+        run: |
+          if [[ "${RUNNER_OS}" == "macOS" ]]; then
+            pnpm prepare:codex-runtime:mac
+            node scripts/check_codex_runtime.mjs --mode=release --platform=darwin-arm64 --platform=darwin-x64
+          else
+            pnpm prepare:codex-runtime:win
+            node scripts/check_codex_runtime.mjs --mode=release --platform=win32-x64
+          fi
+
       - name: Download Kokoro TTS assets
         uses: actions/download-artifact@v4
         with:
@@ -445,6 +456,15 @@ jobs:
             hdiutil verify "$dmg"
           done
 
+      - name: Verify packaged Codex App Server
+        shell: bash
+        run: |
+          if [[ "${RUNNER_OS}" == "macOS" ]]; then
+            node scripts/smoke_codex_packaged_runtime.mjs --root=release --expect=darwin-arm64 --expect=darwin-x64
+          else
+            node scripts/smoke_codex_packaged_runtime.mjs --root=release --expect=win32-x64
+          fi
+
       - name: Smoke packaged Windows app
         if: runner.os == 'Windows'
         run: node scripts/smoke_windows_packaged_app.mjs --mode=full --require-katago
@@ -500,6 +520,11 @@ jobs:
       - name: Typecheck
         run: pnpm typecheck
 
+      - name: Prepare embedded Codex App Server
+        run: |
+          pnpm prepare:codex-runtime:win
+          node scripts/check_codex_runtime.mjs --mode=release --platform=win32-x64
+
       - name: Download Kokoro TTS assets
         uses: actions/download-artifact@v4
         with:
@@ -622,6 +647,9 @@ jobs:
             throw "NVIDIA portable archive exceeds GitHub's 2 GiB asset limit: $($nvidiaPortable.Name) $($nvidiaPortable.Length)"
           }
 
+      - name: Verify packaged Codex App Server
+        run: node scripts/smoke_codex_packaged_runtime.mjs --root=release --expect=win32-x64
+
       - name: Smoke NVIDIA packaged Windows app
         run: node scripts/smoke_windows_packaged_app.mjs --mode=nvidia --require-katago
 

.gitignore

@@ -31,6 +31,9 @@ data/katago/models/**
 data/katago/edition.json
 !data/katago/README.md
 
+# Platform Codex App Server binaries are verified release inputs, not source files.
+data/codex/bin/**
+
 # Large local Kokoro TTS model files are prepared by scripts for release packaging.
 # Voices and metadata are small enough to version; the ONNX model is not.
 data/tts/kokoro/**/onnx/*.onnx

README.md

@@ -169,7 +169,7 @@ docs                架构、发布、签名、公证、QA 文档
 - pnpm 10+
 - Python 3.10+
 - KataGo 二进制和一个 KataGo 模型
-- 可选：OpenAI-compatible 多模态 LLM API
+- 可选：OpenAI-compatible 多模态 LLM API，或通过官方 Codex App Server 使用 ChatGPT 登录
 
 启动：
 
@@ -196,6 +196,12 @@ pnpm dist:win
 pnpm dist:linux
 ```
 
+## AI 老师连接
+
+- **API Key**：可继续使用支持 OpenAI-compatible API 的多模态模型服务。
+- **ChatGPT 登录**：在“设置 → AI 老师”选择“使用 ChatGPT 登录”。GoAgent 通过官方 Codex App Server 完成登录、模型发现和请求；可使用当前 ChatGPT 套餐中支持棋盘图片输入的模型。
+- 登录型连接使用 GoAgent 独立的 Codex App Server 数据目录，不读取或修改系统 Codex CLI / Codex Desktop 的登录；GoAgent 业务代码不读取、复制或输出 OAuth token。
+
 ## KataGo 资源
 
 GoAgent 优先寻找随安装包携带的 KataGo 运行时：
@@ -214,8 +220,8 @@ data/katago/
 ## 隐私与安全
 
 - 棋谱、学生画像、报告和设置默认保存在 `~/.goagent`。
-- LLM API Key 在支持的平台上使用 Electron `safeStorage` 加密保存。
-- 前端不会拿到已保存的完整 API Key。
+- LLM API Key 保存在 GoAgent 本地 secret store 中；只有用户主动点击“显示 Key”核对时才会在设置页读取并显示。
+- ChatGPT 登录凭据由 GoAgent 内置的官方 Codex App Server 保存在 GoAgent 专属目录中；GoAgent 业务代码不会读取或输出 OAuth token，也不会触碰系统 Codex 登录。
 - 当前手讲解会发送棋盘截图、KataGo JSON 和知识库摘录到用户配置的 LLM 服务。
 - Web 搜索只用于泛化围棋概念，不发送学生姓名、棋谱原文、截图、API Key 或本机路径。
 

README_EN.md

@@ -124,7 +124,7 @@ Requirements:
 - pnpm 10+
 - Python 3.10+
 - KataGo binary and model
-- Optional OpenAI-compatible multimodal LLM API
+- Optional OpenAI-compatible multimodal LLM API, or ChatGPT sign-in through the official Codex App Server
 
 For remote compute, see [iKataGo Remote Engine](./docs/IKATAGO_REMOTE_ENGINE.md). GoAgent uses a local `ikatago-client -- analysis` process and does not send positions remotely unless the user explicitly enables that engine path.
 
@@ -151,10 +151,17 @@ pnpm dist:win
 pnpm dist:linux
 ```
 
+## AI Teacher Connections
+
+- **API key**: Continue using any OpenAI-compatible multimodal model service.
+- **ChatGPT sign-in**: Choose “Sign in with ChatGPT” under **Settings → AI Teacher**. GoAgent uses the official Codex App Server for sign-in, model discovery, and requests, and can use models in the active ChatGPT plan that accept board images.
+- ChatGPT sign-in uses a GoAgent-specific Codex App Server data directory. It does not read or modify Codex CLI or Codex Desktop sign-in. GoAgent application code does not read, copy, or print OAuth tokens.
+
 ## Privacy
 
 - Games, reports, settings, and student profiles stay under `~/.goagent` by default.
-- Saved LLM API keys are encrypted with Electron `safeStorage` when available.
+- Saved LLM API keys use GoAgent's local secret store and are only read back into Settings when the user explicitly chooses “Show key.”
+- The embedded official Codex App Server keeps ChatGPT credentials in GoAgent's dedicated data directory. GoAgent application code does not read or print OAuth tokens and does not touch the system Codex sign-in.
 - Current-move teaching may send a board screenshot, KataGo JSON, and selected knowledge cards to the configured LLM endpoint.
 - Web search is optional and should only use generic Go concepts.
 

build/afterPack.cjs

@@ -0,0 +1,32 @@
+const { createHash } = require('node:crypto')
+const { chmodSync, copyFileSync, existsSync, mkdirSync, readFileSync, statSync } = require('node:fs')
+const { join } = require('node:path')
+const { Arch } = require('builder-util')
+
+module.exports = async function afterPack(context) {
+  const projectDir = context.packager.projectDir
+  const manifestPath = join(projectDir, 'data', 'codex', 'manifest.json')
+  const manifest = JSON.parse(readFileSync(manifestPath, 'utf8'))
+  const arch = Arch[context.arch]
+  const target = `${context.electronPlatformName}-${arch}`
+  const asset = manifest.targets[target]
+  if (!asset) throw new Error(`Codex runtime manifest does not support ${target}`)
+
+  const source = join(projectDir, 'data', 'codex', 'bin', target, asset.executable)
+  if (!existsSync(source)) throw new Error(`Codex runtime is missing for ${target}. Run the matching prepare:codex-runtime script first.`)
+  const digest = createHash('sha256').update(readFileSync(source)).digest('hex')
+  if (statSync(source).size !== asset.bytes || digest !== asset.sha256) {
+    throw new Error(`Codex runtime validation failed for ${target}`)
+  }
+
+  const resources = context.electronPlatformName === 'darwin'
+    ? join(context.appOutDir, `${context.packager.appInfo.productFilename}.app`, 'Contents', 'Resources')
+    : join(context.appOutDir, 'resources')
+  const destinationDir = join(resources, 'data', 'codex')
+  const destination = join(destinationDir, 'bin', target, asset.executable)
+  mkdirSync(join(destinationDir, 'bin', target), { recursive: true })
+  copyFileSync(source, destination)
+  copyFileSync(manifestPath, join(destinationDir, 'manifest.json'))
+  copyFileSync(join(projectDir, 'data', 'codex', 'LICENSE'), join(destinationDir, 'LICENSE'))
+  if (context.electronPlatformName !== 'win32') chmodSync(destination, 0o755)
+}

data/codex/LICENSE

@@ -0,0 +1,201 @@
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