- Add .github/workflows/docs-to-issues.yml to convert docs/issues/*.md to GitHub Issues
- Support YAML frontmatter for title, labels, priority, assignees, milestone
- Auto-create missing labels with predefined color scheme
- Support sub-issue creation from H2 sections (create_sub_issues: true)
- Move processed files to docs/issues/created/ to prevent duplicates
- Add dry-run and manual file selection workflow inputs
- Add _TEMPLATE.md with frontmatter documentation
- Add README.md with usage instructions
- Add implementation plan at docs/plans/docs_to_issues_workflow.md