Remove obsolete test file and update remaining tests to not use the removed --resolve-collisions flag. Hash-based IDs make collision resolution unnecessary. Changes: - Delete internal/rpc/server_autoimport_test.go (obsolete) - Remove --resolve-collisions from beads_nway_test.go - Remove --resolve-collisions from beads_twoclone_test.go - Remove --resolve-collisions from cmd/bd/sync.go All tests now pass.