openclaw - 💡(How to fix) Fix [Feature Request] Support configuring group messages to default to Feishu card format

Feature Request: 群消息默认发飞书卡片

Problem

Currently, Feishu group messages sent by OpenClaw use plain text format. Users want the ability to configure all group messages to use Feishu Interactive Card format by default.

Use Case

Park management agent needs to send daily briefings (招商简报, 物业工单, etc.) to multiple group chats. Currently requires explicit --msg-type interactive on every message. Users want this to be the default behavior for group chats.

Proposed Solution

Add a config option to channels.feishu:

{
  "channels": {
    "feishu": {
      "groupMessageFormat": "card", // or "text" (default)
      "groupPolicy": "open"
    }
  }
}

When groupMessageFormat: "card" is set, all group messages would automatically use the Feishu Interactive Card format instead of plain text.

Alternatives Considered

1. Per-group configuration: Allow different format per chat_id
2. Streaming card mode: Already supported via streaming: true, but still requires explicit card format
3. Message-type specific: Cards for reports vs text for casual replies

Additional Context

• Feishu streaming cards are already supported (streaming: true)
• Interactive card sending requires --msg-type interactive and full card JSON payload
• This would be a user-facing config option

Requested by: 王卓 (park-agent use case, 上海金蝶软件园)