chore: remove stale root TODO.md

Tracking moved to .claude/tasks/TODO.md per project convention.
The 3 listed skills (SEO, code-clean, doc) were already shipped.

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

TODO.md

@@ -1,8 +0,0 @@
-~~faire skill / agent SEO + GEO~~ ✓ done (skills/seo/ + agents/seo-analyzer.md)
-
-~~faire skill / agent clean code~~ ✓ done (skills/code-clean/ + agents/code-cleaner.md)
-
-~~faire skill / agent do doc~~ ✓ done (skills/doc/ + agents/doc-syncer.md)
-
-Creer un script qui active / desactive gstack, gsd, graphify, et les autre. 
-Verifier l'installation de tout dnas uinstall-plugin, ajouter le npx skills add alchaincyf/darwin-skill