* Add vardoger-analyze skill
Made-with: Cursor
* fix Copilot session-state path in vardoger-analyze SKILL.md
* add numbered workflow overview to satisfy skill-validator
The dotnet/skills validator's NumberedStepRegex (^\d+\.\s, multiline)
only matches ordered list items at line start, not ### numbered
headings, so the previous '### 1. …' layout triggered the
'No numbered workflow steps' warning on PR #1461. Keep the existing
step headings for structure and add a short numbered Workflow
summary that the regex picks up.
* regenerate docs/README.skills.md for vardoger-analyze
