fix(feishu): require explicit bot mention for @all

[futuhkdata-source]

Summary

• stop treating Feishu/Lark @_all as an explicit bot mention in mention-gated groups
• preserve explicit bot mention admission by open_id/user_id/name
• keep intentional no-mention groups as configuration exceptions (sandbox + multiprofit remain require_mention=false outside this PR)
• update/add regression tests for @ALL mention gating

Tests

• python -m pytest tests/gateway/test_feishu_bot_admission.py tests/gateway/test_feishu.py::TestGroupMentionAtAll -q

Local runtime note

• production config currently has global require_mention=true with only the intentional sandbox/multiprofit no-mention exceptions
• local verification script confirms @_all is not considered a self mention while explicit @bot still is

[alt-glitch]

This was generated by AI during triage.

Duplicate of #59347 — both drop the @_all -> return True branch from Feishu _mentions_self() so Feishu/Lark @everyone no longer counts as an explicit bot mention (same mechanism). #59347 (earlier, 2026-07-06) is canonical: it is clean/focused and targets the current adapter path plugins/platforms/feishu/adapter.py.

Note: this PR edits gateway/platforms/feishu.py, which no longer exists on main — the Feishu adapter was relocated to plugins/platforms/feishu/adapter.py. The branch is also a whole-branch push bundling many unrelated changes (cron scheduler, terminal tool, process registry, gateway runtime footer, CLI, AGENTS.md), which is why it shows as CONFLICTING. Related: #60910, #33775 (config-toggle approaches), and issue #33723.

[teknium1]

Thanks for the focused regression coverage. The premise is confirmed on current main: plugins/platforms/feishu/adapter.py:4334-4335 treats every raw @_all token as a self-mention, and _admit() uses that result for the required-mention group gate at plugins/platforms/feishu/adapter.py:4274-4275. Removing that early return preserves explicit ID/name mention matching and the normalized is_self check at plugins/platforms/feishu/adapter.py:4336-4345,4370-4371.

Problems

• website/docs/user-guide/messaging/feishu.md:238 currently says @all satisfies the explicit-mention gate. That statement becomes incorrect with this change.

Suggested changes

• Update that group-policy sentence to require an explicit bot mention, while preserving the documented mention-free configuration exceptions at lines 240-246 and 527-529.

The three-file patch applies cleanly to current main (git apply --check), so this is otherwise mechanically straightforward to salvage.

Automated hermes-sweeper review.