feat: 实现ChatGPT Codex路由器的核心功能

- 添加完整的项目基础结构，包括配置、类型定义和常量
- 实现OAuth认证流程和令牌管理
- 开发请求转换和响应处理逻辑
- 添加SSE流处理和ChatCompletions API转换
- 实现模型映射和提示指令系统
- 包含Docker部署配置和快速启动文档
- 添加自动登录功能和测试脚本

test-direct-response.js

@@ -0,0 +1,74 @@
+import { getAccessToken } from './dist/auth/token-refresh.js';
+import { getAccountId } from './dist/auth/token-refresh.js';
+
+const accessToken = await getAccessToken();
+const accountId = await getAccountId();
+
+if (!accessToken || !accountId) {
+  console.error('No token or account ID');
+  process.exit(1);
+}
+
+const instructions = await import('./dist/prompts/index.js').then(m => m.getCodexInstructions('gpt-5.1'));
+
+const response = await fetch('https://chatgpt.com/backend-api/codex/responses', {
+  method: 'POST',
+  headers: {
+    'Authorization': `Bearer ${accessToken}`,
+    'openai-account-id': accountId,
+    'openai-beta': 'responses=2',
+    'openai-originator': 'codex_cli_rs',
+    'Content-Type': 'application/json',
+  },
+  body: JSON.stringify({
+    model: 'gpt-5.1',
+    input: [
+      {
+        type: 'message',
+        role: 'user',
+        content: [
+          {
+            type: 'input_text',
+            text: 'Hello, say hi in one word'
+          }
+        ]
+      }
+    ],
+    stream: true,
+    store: false,
+    reasoning: { effort: 'medium', summary: 'auto' },
+    instructions: instructions
+  })
+});
+
+console.log('Status:', response.status);
+
+const reader = response.body.getReader();
+const decoder = new TextDecoder();
+let buffer = '';
+let chunks = 0;
+
+while (true) {
+  const { done, value } = await reader.read();
+  if (done) break;
+  
+  buffer += decoder.decode(value, { stream: true });
+  const lines = buffer.split('\n');
+  buffer = lines.pop() || '';
+  
+  for (const line of lines) {
+    if (line.startsWith('data: ')) {
+      chunks++;
+      const data = line.substring(6);
+      if (data.trim() !== '[DONE]') {
+        try {
+          const parsed = JSON.parse(data);
+          console.log(`Chunk ${chunks}: type="${parsed.type}", delta=`, parsed.delta ? JSON.stringify(parsed.delta).substring(0, 100) : 'N/A');
+          if (chunks >= 10) process.exit(0);
+        } catch (e) {
+          console.log(`Raw chunk ${chunks}:`, data.substring(0, 100));
+        }
+      }
+    }
+  }
+}