Use config.default_project as single source of truth for the Default
column in `bm project list`, removing checks against local DB and cloud
API is_default fields that could independently mark multiple projects.
Also updates tests that were out of date after get_project_mode changed
to default unknown projects to CLOUD:
- test_get_client_local_project_uses_asgi_transport: register "main" as LOCAL
- test_run_filters_cloud_projects_each_cycle: register local project in config
- test_new_project_addition_scenario: register projects as LOCAL in config
- test_get_project_mode_defaults_to_cloud: assert new CLOUD default
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Signed-off-by: phernandez <paul@basicmachines.co>
Paul Hernandez