- Add _apply_output_dict() building the spec-required JSON envelope
- Update lifecycle_apply_plan to use _apply_output_dict for --format json
- Rewrite robot file to use Run Process + helper dispatch pattern
- Rewrite robot helper to use real LifecyclePlan domain objects
- Apply ruff format to plan_apply_json_envelope_steps.py
The `agents plan apply --format json` command was returning a raw
plan dictionary instead of the spec-required JSON envelope. This fix
introduces a dedicated `_apply_output_dict()` helper that wraps the
non-rich format output in the proper envelope structure with
`command`, `status`, `exit_code`, `data`, `timing`, and `messages`
fields.
The `data` field contains structured information about artifacts,
changes, project, applied_at, validation (test/lint/type_check),
sandbox_cleanup, and lifecycle metrics. Other commands (plan status,
plan cancel, plan use) remain unaffected — they continue using
`_plan_spec_dict`.
Tests: 16 Behave scenarios + 15 Robot Framework integration tests
added covering envelope structure, field presence, sandbox cleanup
state derivation from actual plan state, legacy fallback, cost
metadata, and command isolation.
ISSUES CLOSED: #9449
HAL9000
controller-ci-rerun