.get("key", {}) only applies the default when the key is ABSENT.
When the key exists with value None (null in JSON), .get() returns
None and the subsequent .get() raises AttributeError.
Fix: replace .get("key", {}).get(...) with (.get("key") or {}).get(...)
which handles both missing keys AND None values.
8 instances across 6 files:
- gateway/run.py: tool_call function name check
- acp_adapter/server.py: tool name/description extraction
- gateway/platforms/qqbot/onboard.py: API response task_id
- gateway/platforms/yuanbao.py: message content parsing (x2)
- gateway/platforms/slack.py: block text extraction (x2)
- tui_gateway/server.py: error message extraction
c5b62fdbae