修复 missing field type 错误

我们还需要进一步确保所有历史消息都带有 type 字段，因为错误仍然出现。这次我们要深入检查前端代码中所有可能使用历史消息的地方，并确保在加载和恢复会话时也补全 type 字段。

[
  {
    "id": 1,
    "tool": "bash_run",
    "args": {
      "command": "grep -n 'role.*user\\|role.*assistant\\|role.*system\\|role.*tool' /home/administrator/CmdCode-V0.5/public/cmdcode-web.html | head -40",
      "timeout": 5
    },
    "description": "全面搜索所有带有 role 的代码行，确认还有哪些地方构造消息时没有添加 type 字段",
    "expected_outcome": "找到所有未添加 type 字段的消息构造点"
  },
  {
    "id": 2,
    "tool": "bash_run",
    "args": {
      "command": "grep -n 'push\\|messages\\[' /home/administrator/CmdCode-V0.5/public/cmdcode-web.html | head -30",
      "timeout": 5
    },
    "description": "搜索所有向消息数组 push 或索引赋值的位置",
    "expected_outcome": "找到所有可能导致新增消息但未带 type 的地方"
  },
  {
    "id": 3,
    "tool": "file_read",
    "args": {
      "offset": 1780,
      "limit": 120,
      "path": "/home/administrator/CmdCode-V0.5/public/cmdcode-web.html"
    },
    "description": "查看工具调用循环周围的消息构造代码",
    "expected_outcome": "获取工具调用中 assistant 和 tool 角色的消息构造代码"
  },
  {
    "id": 4,
    "tool": "file_edit",
    "args": {
      "new_text": "    // 确保所有消息都包含 type 字段（修复历史记录缺失问题）\n    const ensureType = (m) => ({\n      ...m,\n      type: m.type || (m.role === 'tool' ? 'tool' : (m.role === 'system' ? 'system' : 'message'))\n    });\n\n    // 加载历史并立即补全 type\n    history = history.map(ensureType);\n    \n    // 构造初始消息数组，确保每条消息含有 type 字段\n    let messages = [\n      ensureType({ role: 'system', content: SYSTEM_PROMPT }),\n      ...history.map(ensureType),\n      ensureType({ role: 'user', content: text })\n    ];",
      "old_text": "    let messages = [\n      { role: \"system\", type: \"system\", content: SYSTEM_PROMPT },\n      ...history.map(m => ({ ...m, type: m.type || (m.role === \"tool\" ? \"tool\" : \"message\") })),\n      { role: \"user\", type: \"message\", content: text }\n    ];",
      "path": "/home/administrator/CmdCode-V0.5/public/cmdcode-web.html"
    },
    "description": "使用统一的 ensureType 函数为所有消息（包括历史、系统提示、用户输入）强制补充 type 字段",
    "expected_outcome": "彻底解决 messages[N]: missing field 'type' 错误"
  },
  {
    "id": 5,
    "tool": "file_edit",
    "args": {
      "new_text": "    currentMessages.push(ensureType({ role: \"tool\", tool_call_id: tc.id, content: toolResult.content }));",
      "old_text": "    currentMessages.push({ role: \"tool\", type: \"tool\", tool_call_id: tc.id, content: toolResult.content });",
      "path": "/home/administrator/CmdCode-V0.5/public/cmdcode-web.html"
    },
    "description": "工具结果也使用 ensureType 包装，保证 type 字段一定存在",
    "expected_outcome": "工具调用循环中的消息也具备完整的 type 字段"
  },
  {
    "id": 6,
    "tool": "bash_run",
    "args": {
      "command": "cd /home/administrator/CmdCode-V0.5 && bun run src/cli.ts --version",
      "timeout": 10
    },
    "description": "验证修改后项目编译无异常",
    "expected_outcome": "输出 CmdCode V0.5.0"
  }
]