Missed files in temp handling patch

[exuvo]

It appears i missed the files ibl_db_<numbers>.pt that trainer_distsampler.py uses. I guess i was too lazy to do a full test run last time.

Line 516 ibl_db = torch.load("./ibl_db_%d.pt" % crc, weights_only=False) and line 600 torch.save(ibl_db, "./ibl_db_%d.pt" % crc) need the same tmp_dir.name + prepended as in main.py.

Traceback (most recent call last):
dbug: Baballonia.Desktop.Trainer.TrainerService[0]
      Importing...
  File "/opt/baballonia/_babbletrainer/main.py", line 60, in <module>
    cap = read_capture_file(sys.argv[1])
  File "/opt/baballonia/_babbletrainer/trainer_distsampler.py", line 600, in read_capture_file
    torch.save(ibl_db, "./ibl_db_%d.pt" % crc)
    ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.13/site-packages/torch/serialization.py", line 966, in save
    with _open_zipfile_writer(f) as opened_zipfile:
         ~~~~~~~~~~~~~~~~~~~~^^^
  File "/usr/lib/python3.13/site-packages/torch/serialization.py", line 828, in _open_zipfile_writer
    return container(name_or_buffer)  # type: ignore[arg-type]
  File "/usr/lib/python3.13/site-packages/torch/serialization.py", line 792, in __init__
    torch._C.PyTorchFileWriter(
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^
        self.name, get_crc32_options(), _get_storage_alignment()
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
RuntimeError: File ./ibl_db_2055526163.pt cannot be opened.