Rich inserts color codes between flag name parts (e.g. --speculative
becomes \x1b[1;36m-\x1b[0m\x1b[1;36m-speculative\x1b[0m), so plain
substring match fails in CI. Strip ANSI before asserting.
- Rename --spec-tokens to --num-speculative-tokens to avoid prefix
collision with --speculative-decoding in Typer help rendering
- Add pytest.skip for _create_app tests when fastapi is not installed