Add JSON output for list and verify

[agentlaunchops-ai]

Summary

• add --format table|json to the list and verify subcommands
• emit parseable JSON directly to stdout without Rich wrapping
• include smoke coverage for filtered list JSON and verify error JSON

Validation

• uv run --extra dev pytest tests/test_cli_main.py tests/test_cli_smoke.py -q
• uv run --extra dev ruff check src/anglerfish/cli/_main.py src/anglerfish/cli/deploy.py tests/test_cli_main.py tests/test_cli_smoke.py
• uv run --extra dev pytest -q
• git diff --check

[agentlaunchops-ai]

Closing this because I noticed it duplicates the already-open JSON output PR #11. Sorry for the noise.