• Fix _IncomingHandler.process() to convert CallbackMessage to ChatbotMessage using ChatbotMessage.from_dict(), matching dingtalk-stream SDK behavior.
• Replace manual _extract_text() logic with SDK's get_text_list() which correctly handles TextContent objects and richText messages.
• Relax _DINGTALK_WEBHOOK_RE to match *.dingtalk.com (was api.dingtalk.com) to support oapi.dingtalk.com webhook URLs.
• Add detailed debug logging for webhook caching and send() routing.
• Remove blocking asyncio.to_thread() call since stream client now runs async natively in the main event loop.
• Update test_dingtalk.py to use real ChatbotMessage.from_dict() instead of MagicMock for _extract_text() tests.

What does this PR do?

Related Issue

Fixes #

Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 🔒 Security fix
• 📝 Documentation update
• ✅ Tests (adding or improving test coverage)
• ♻️ Refactor (no behavior change)
• 🎯 New skill (bundled or hub)

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Checklist

Code

• I've read the Contributing Guide
• My commit messages follow Conventional Commits (fix(scope):, feat(scope):, etc.)
• I searched for existing PRs to make sure this isn't a duplicate
• My PR contains only changes related to this fix/feature (no unrelated commits)
• I've run pytest tests/ -q and all tests pass
• I've added tests for my changes (required for bug fixes, strongly encouraged for features)
• I've tested on my platform:

Documentation & Housekeeping

• I've updated relevant documentation (README, docs/, docstrings) — or N/A
• I've updated cli-config.yaml.example if I added/changed config keys — or N/A
• I've updated CONTRIBUTING.md or AGENTS.md if I changed architecture or workflows — or N/A
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• I've updated tool descriptions/schemas if I changed tool behavior — or N/A

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