chore: rebrand for public release

- Move repository from bandit to personal-projects organization
- Remove all "Bandit Labs" references
- Update author to Leo Miranda
- Rename marketplace from bandit-claude-marketplace to claude-code-marketplace
- Add MIT LICENSE file
- Remove outdated root .mcp.json (MCP servers now bundled in plugins)
- Update all repository URLs to new location

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/projman/README.md

@@ -438,5 +438,4 @@ MIT License - See repository root for details
 
 ---
 
-**Built for:** Bandit Labs
 **Status:** Production Ready