fix(bmvcs): fix markdown formatting in validate-vcs-config

- Add blank line before list in Error Handling section
- Improve markdown compliance

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/modules/bmvcs/tasks/validate-vcs-config.md

@@ -64,6 +64,7 @@ output: |
 ## Error Handling
 
 If validation fails:
+
 - Report specific field with error
 - Suggest correction
 - Offer to re-run discovery