tests/qa/test_08_end_to_end.py runs at module import, so pytest fails
collection with CheckpointValidationError: the Stage 5 edit_decisions
fixture omits render_runtime, which edit_decisions.schema.json lists as
required. Per AGENT_GUIDE the runtime is locked at proposal and carried
through edit unchanged, so the fixture now sources it from the same
proposal_packet["production_plan"]["render_runtime"] ("remotion")
instead of hardcoding an unrelated value, keeping the fixture internally
consistent with the proposal it builds on.
6b72f954a7