#10 revert: enhance existing CLI workflows (#9)

Why

Return the workflow changes from #9 to review before they ship further. Reverting here restores the previous workflow skills in the firecrawl/skills catalog.

Summary

• Revert #9: restore the previous firecrawl-lead-gen, firecrawl-lead-research, firecrawl-seo-audit, firecrawl-website-design-clone and firecrawl-workflows skills, remove firecrawl-fantasy-sports and firecrawl-job-postings with the new reference files, and return the plugin manifests and counts to 0.1.0 and 16 workflows.
• The repository content now matches the commit before #9.
• Merge only after firecrawl/cli#319 is published as firecrawl-cli@1.26.7 (npm latest). The catalog sync deletes and recopies skills/workflows on every push to main, so merging first would leave 1.26.6 requesting two skills that no longer exist, and firecrawl setup would report success without installing them.

Test Plan

• git diff 94cc912 HEAD is empty: the tree is identical to the state before #9.
• 16 workflow skills remain, none named firecrawl-fantasy-sports or firecrawl-job-postings.
• All three plugin manifests parse and report version 0.1.0.
• After merge, confirm the catalog sync run succeeds and firecrawl/skills/skills/workflows lists the same 16 skills.