fix(telegram): shorten polling network errors

tests/channels/test_telegram_channel.py

@@ -32,8 +32,10 @@ class _FakeHTTPXRequest:
 class _FakeUpdater:
     def __init__(self, on_start_polling) -> None:
         self._on_start_polling = on_start_polling
+        self.start_polling_kwargs = None
 
     async def start_polling(self, **kwargs) -> None:
+        self.start_polling_kwargs = kwargs
         self._on_start_polling()
 
 
@@ -184,6 +186,7 @@ async def test_start_creates_separate_pools_with_proxy(monkeypatch) -> None:
     assert poll_req.kwargs["connection_pool_size"] == 4
     assert builder.request_value is api_req
     assert builder.get_updates_request_value is poll_req
+    assert callable(app.updater.start_polling_kwargs["error_callback"])
     assert any(cmd.command == "status" for cmd in app.bot.commands)
     assert any(cmd.command == "dream" for cmd in app.bot.commands)
     assert any(cmd.command == "dream-log" for cmd in app.bot.commands)
@@ -307,6 +310,26 @@ async def test_on_error_logs_network_issues_as_warning(monkeypatch) -> None:
     assert recorded == [("warning", "Telegram network issue: proxy disconnected")]
 
 
+@pytest.mark.asyncio
+async def test_on_error_summarizes_empty_network_error(monkeypatch) -> None:
+    from telegram.error import NetworkError
+
+    channel = TelegramChannel(
+        TelegramConfig(enabled=True, token="123:abc", allow_from=["*"]),
+        MessageBus(),
+    )
+    recorded: list[tuple[str, str]] = []
+
+    monkeypatch.setattr(
+        "nanobot.channels.telegram.logger.warning",
+        lambda message, error: recorded.append(("warning", message.format(error))),
+    )
+
+    await channel._on_error(object(), SimpleNamespace(error=NetworkError("")))
+
+    assert recorded == [("warning", "Telegram network issue: NetworkError")]
+
+
 @pytest.mark.asyncio
 async def test_on_error_keeps_non_network_exceptions_as_error(monkeypatch) -> None:
     channel = TelegramChannel(