Add two operator-facing toggles for inbound Feishu admission, enabling
bot-to-bot scenarios such as A2A orchestration and inter-bot
notifications:
FEISHU_ALLOW_BOTS=none|mentions|all (default: none)
Accept messages from other bots. `mentions` requires the peer
bot to @-mention Hermes; `all` admits every peer-bot message.
FEISHU_REQUIRE_MENTION=true|false (default: true)
Whether group messages must @-mention the bot. Override per-chat
via `group_rules.<chat_id>.require_mention` in config.yaml.
Defaults preserve prior behavior. Self-echo protection is always on:
when the bot's identity is unresolved (auto-detection failed and
FEISHU_BOT_OPEN_ID unset), peer-bot messages are rejected fail-closed
to avoid feedback loops.
Admitted peer bots bypass the human-user allowlist
(FEISHU_ALLOWED_USERS) to match existing Discord behavior; humans
still need an explicit allowlist entry. yaml feishu.allow_bots is
bridged to the env var so the adapter and gateway auth layer share
one source of truth.
Resolving peer-bot display names requires the
application:bot.basic_info:read scope; without it, peers still route
but appear as their open_id.
Test: tests/gateway/test_feishu_bot_admission.py covers the admission
pipeline, group-policy bot-bypass, hydration, and event-dispatch
plumbing as a parametrized matrix.
Change-Id: I363cccb578c2a5c8b8bf0f0a890c01c89909e256
b94cb8e2c4