- Add missing document_output_language and user_skill_level to create-story
(referenced in instructions.xml but never declared)
- Remove retrospectives_folder alias, replace with canonical implementation_artifacts
- Remove unused sprint_status and duplicate validation alias from correct-course
- Remove unused date, planning_artifacts, tracking_system from sprint-status
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Drop pointless alias variables (output_folder, story_dir, story_directory)
from Phase 4, Quick Flow, and QA workflows. Replace all references with
the canonical {implementation_artifacts} or {planning_artifacts} variables.
Also flatten unnecessary `variables:` YAML nesting in all affected
workflow.yaml files — the workflow engine treats all keys as top-level,
so the nesting added complexity with no semantic value.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>