The gateway reconnect watcher forwards is_reconnect=True to every
adapter.connect() call on every retry. Adapters whose signature omits
the kwarg raise TypeError at every reconnect attempt and stay silently
disconnected — the exact bug that shipped for QQAdapter and only
surfaced after messages stopped flowing on the QQ channel for hours.
This test statically parses every adapter.py under gateway/platforms/
and plugins/platforms/ (via AST, so third-party SDKs like slack_sdk,
matrix-nio, aiohttp, telegram, etc. are NOT required in the test env)
and asserts every *Adapter class with an async connect() accepts
is_reconnect — either as a keyword-only argument or absorbed by
**kwargs.
Also fixes plugins/platforms/wecom/callback_adapter.py:WecomCallbackAdapter,
which the new test caught as a second offender. Same class of bug: bare
'async def connect(self)' signature would die on the first reconnect.
Companion to #59429 (which fixed the original QQAdapter offender).
