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- Remove outdated root .mcp.json (MCP servers now bundled in plugins)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/claude-config-maintainer/README.md

@@ -96,4 +96,4 @@ Target score: **70+** for effective Claude Code usage.
 
 ## Contributing
 
-This plugin is part of the bandit/support-claude-mktplace repository.
+This plugin is part of the personal-projects/support-claude-mktplace repository.