`wait_for_termination` issue with Snooping Transport

[ttdennis]

When the wait_for_termination() method is called while a SnoopingTransport is in use Bumble crashes. The reason is that the Source class in the SnoopingTransport does not have the wait_for_termination() method implemented.

The following example shows the scan.py app being run:

BUMBLE_SNOOPER=btsnoop:file:/tmp/bumble-snoop uv run bumble-scan usb:0
<<< connecting to HCI...
<<< connected
Traceback (most recent call last):
  File "/Users/user/git/bumble/.venv/bin/bumble-scan", line 10, in <module>
    sys.exit(main())
             ~~~~^^
  File "/Users/user/git/bumble/.venv/lib/python3.14/site-packages/click/core.py", line 1485, in __call__
    return self.main(*args, **kwargs)
           ~~~~~~~~~^^^^^^^^^^^^^^^^^
  File "/Users/user/git/bumble/.venv/lib/python3.14/site-packages/click/core.py", line 1406, in main
    rv = self.invoke(ctx)
  File "/Users/user/git/bumble/.venv/lib/python3.14/site-packages/click/core.py", line 1269, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/user/git/bumble/.venv/lib/python3.14/site-packages/click/core.py", line 824, in invoke
    return callback(*args, **kwargs)
  File "/Users/user/git/bumble/apps/scan.py", line 241, in main
    asyncio.run(
    ~~~~~~~~~~~^
        scan(
        ^^^^^
    ...<11 lines>...
        )
        ^
    )
    ^
  File "/opt/homebrew/Cellar/python@3.14/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/runners.py", line 204, in run
    return runner.run(main)
           ~~~~~~~~~~^^^^^^
  File "/opt/homebrew/Cellar/python@3.14/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/runners.py", line 127, in run
    return self._loop.run_until_complete(task)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/opt/homebrew/Cellar/python@3.14/3.14.2/Frameworks/Python.framework/Versions/3.14/lib/python3.14/asyncio/base_events.py", line 719, in run_until_complete
    return future.result()
           ~~~~~~~~~~~~~^^
  File "/Users/user/git/bumble/apps/scan.py", line 184, in scan
    await hci_source.wait_for_termination()
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'Source' object has no attribute 'wait_for_termination'

The docstring in the wait_for_termination() implementation in the BaseSource mentions that it is only kept for backward compatibility.

So I guess the solution is to either add a wait_for_termination method to the Source class in the SnoopingTransport, or adapt the scripts to use await source.terminated.

I would have created a PR to fix the issue, but I'm not sure what you prefer (implementing the method versus deprecating it and adapting the apps/examples).

[barbibulle]

The best would be to update the app(s) to not use wait_for_termination anymore.