Resolve PR CI template failures after default-template switch

[Copilot]

CI started failing in test_template.py::test_drive after donkey5 became the default template. The test invoked complete.drive() with a config shape that no longer guaranteed complete-specific flags.

• Root cause

  • test_drive created the default (donkey5) template, then executed donkeycar.templates.complete.drive().
  • complete.drive() accessed TRAIN_LOCALIZER / TRAIN_BEHAVIORS directly, which are not guaranteed on non-complete configs.

• Changes

  • Template test alignment
    • Updated test_drive to explicitly create the complete template before calling complete.drive.
  • Runtime compatibility hardening
    • In donkeycar/templates/complete.py, replaced direct config attribute access with safe defaults via getattr(..., False) for TRAIN_LOCALIZER and TRAIN_BEHAVIORS.
    • Reused the normalized values when selecting model type and pilot outputs.

• Representative diff

  # test_template.py
  path = custom_template(d2_path(gettempdir()), template="complete")
  
  # complete.py
  train_localizer = getattr(cfg, 'TRAIN_LOCALIZER', False)
  train_behaviors = getattr(cfg, 'TRAIN_BEHAVIORS', False)