Summary

• make the planner rebuild normalized review payloads from issue_context.json and secondary_review.json after artifact download
• keep the planner compatible with both old dual-AI runs and new runs that already include final_review_payload.json
• update workflow config tests for the new payload preparation steps

Testing

• python3 -m unittest tests/test_build_ai_review_payload.py tests/test_download_ai_review_artifact.py tests/test_build_monthly_optimization_plan.py tests/test_post_monthly_optimization_issue.py tests/test_post_monthly_ai_review_comment.py tests/test_render_monthly_ai_review.py tests/test_run_openai_secondary_review.py tests/test_monthly_publish_workflow_config.py tests/test_monthly_optimization_planner_workflow_config.py
• uvx ruff check scripts tests
• ruby -e 'require "yaml"; Dir[".github/workflows/*.yml"].each { |f| YAML.load_file(f) }; puts "yaml ok"'