Summary

Three DingTalk follow-up fixes in one PR — all from external contributors, all cherry-picked with authorship preserved:

1. gateway cant add DingTalk platform #11500 @youngDoo — GatewayConfig.get_connected_platforms() was missing a DingTalk branch entirely. A DingTalk-configured gateway (via YAML extra: or env vars) never appeared in the connected-platforms list, so status displays and iteration callers silently omitted it.

2. fix(dingtalk): fire-and-forget message processing & session_webhook fallback #11518 @kagura-agent — _IncomingHandler.process() currently awaits _on_message directly, which blocks the SDK's recv loop for the full duration of agent processing. For a chat agent responding in 10-30s, this breaks the SDK's heartbeat deadline and causes WebSocket disconnects. Fix: dispatch via asyncio.create_task() so ACK returns immediately. Also adds a defensive session_webhook fallback (raw dict lookup for both sessionWebhook and session_webhook keys) in case a future SDK revision changes the field name. Resolves issue [Bug]: dingtalk channle callback error #11463 (@sgjeff's "No session_webhook available" report).

3. fix(dingtalk): fix multiple bugs in DingTalk platform adapter #9003 @yyq4193 (one-liner cherry-picked with Co-authored-by trailer) — hermes_cli/tools_config.py was calling config.get("platform_toolsets", {}), which returns None when the YAML key is explicitly null (common with platform_toolsets: and no value below). The next line's .get(platform) then crashed with AttributeError. Changed to config.get(...) or {}.

The rest of #9003 is redundant with #11471 that landed earlier today (webhook regex, async start(), async process(), CallbackMessage → ChatbotMessage) and includes one security regression (https?:// allowing plain HTTP on the webhook allowlist) that I deliberately did not carry over. The tools_config.py one-liner is the only net-new legitimate change from #9003 and I'm landing it here with credit.

Commits (all authorship preserved)

726bea34  Teknium (Co-authored-by: yyq4193)
          test(dingtalk): cover get_connected_platforms + null platform_toolsets
973e0128  kagura-agent
          fix(dingtalk): fire-and-forget message processing & session_webhook fallback
0d2a845f  youngDoo
          gateway cant add DingTalk platform

Merge with --rebase to preserve per-commit authorship.

What I cleaned up

• gateway/config.py: stripped ~140 trailing whitespace characters on the new DingTalk branch line from @youngDoo's diff.
• Resolved a cherry-pick conflict in tests/gateway/test_dingtalk.py — kagura-agent's branch predated the group-gating test classes we merged earlier today via feat(dingtalk): add require_mention + allowed_users gating (parity with Slack/Telegram/Discord) #11564, and both sides appended new test classes at EOF. Kept both.

What I deliberately dropped from #9003

• r'^https?://(api|oapi)\.dingtalk\.com/' — this would re-allow plain HTTP on the webhook URL allowlist. Current main enforces ^https:// only and this is the right security posture. Rejected as a regression.
• Pre-fix(dingtalk): support dingtalk-stream 0.24+ SDK (async process, CallbackMessage, oapi webhooks, TextContent) #11471 SDK compat changes (async start(), async process(), CallbackMessage → ChatbotMessage, webhook regex oapi accept) — already on main.
• logger.debug → logger.info for inbound messages — debatable noise; every received message would land in agent.log at INFO. Not carrying over.

Tests

• tests/gateway/test_dingtalk.py — 50 passed (includes kagura-agent's 3 new TestIncomingHandlerProcess tests + our earlier regression tests)
• tests/gateway/test_config.py — 28 passed (includes 4 new TestGetConnectedPlatforms::test_dingtalk_* tests I added)
• tests/hermes_cli/test_tools_config.py — 31 passed (includes test_get_platform_tools_handles_null_platform_toolsets regression test)
• Combined: 109 passed

Closes

Closes #11500, #11518, #9003 on merge. Should also resolve #11463 (pending @sgjeff pulling latest main).