test: add 58 integration tests for v0.3.11-v0.3.13 commands

Coverage for: sprint, attachments, project-updates, templates remote,
import, export, completions (static+dynamic), _complete hidden command,
teams CRUD, projects archive, done, setup, doctor --fix, global --yes

Total: 252 unit + 190 integration = 442 tests

Author: Finesssee