hermes - 💡(How to fix) Fix Feishu: card callback resolves wrong chat_type for p2p chats, breaking session model overrides [1 participants]

Summary

In the Feishu adapter, when a user clicks a button on the interactive /MODEL picker card in a p2p (DM) chat, _resolve_source_chat_type() returns "group" instead of "dm". This causes the session key built from the card callback to differ from the session key used by the regular message handler, so the model override stored by the card callback is never applied.

Reproduction

1. Set up Hermes with Feishu channel in websocket mode
2. In a p2p DM with the bot, send /model
3. Click a model button on the interactive card
4. Send any message — the model is NOT switched, still uses the default

Root Cause

In gateway/platforms/feishu.py, the card action handler (~line 2390) calls _resolve_source_chat_type() which uses get_chat_info API. For p2p chats, this API returns type "p2p" which gets normalized to "group" by _resolve_source_chat_type().

Meanwhile, the regular message handler receives the chat type directly from the message event, which correctly resolves to "dm".

Result:

• Card callback builds session key: agent:main:feishu:group:oc_xxx:ou_yyy
• Message handler looks up: agent:main:feishu:dm:oc_xxx
• Override stored under the wrong key → never found

Suggested Fix

In the card action handler, before calling _resolve_source_chat_type(), try extracting the correct chat_type from alternative sources:

# 1. Try ms field from card action value (model picker includes session_key)
_ms = str(action_value.get("ms", "") or "")
_ms_chat_type = ""
if _ms:
    _ms_parts = _ms.split(":")
    if len(_ms_parts) >= 4:
        _ms_chat_type = _ms_parts[3]

# 2. Fallback to model picker state (stores correct session_key from creation time)
if _ms_chat_type not in ("dm", "group", "forum"):
    _picker_state = (
        self._model_picker_state.get(str(card_message_id or ""))
        or self._model_picker_state.get(str(chat_id))
    )
    if _picker_state and _picker_state.get("session_key"):
        _sk_parts = _picker_state["session_key"].split(":")
        if len(_sk_parts) >= 4:
            _ms_chat_type = _sk_parts[3]

if _ms_chat_type in ("dm", "group", "forum"):
    resolved_chat_type = _ms_chat_type
else:
    resolved_chat_type = self._resolve_source_chat_type(...)

Impact

High — the interactive /MODEL card is completely non-functional for p2p chats on Feishu. The model selection appears to succeed (card updates) but the override is lost.

Environment

• Hermes agent version: 1acf81fd (Apr 13, 2026)
• Platform: Feishu websocket mode, p2p DM chats