fix: change package name to scoped @paulduvall/claude-dev-toolkit

- Add @PaulDuvall scope to package name to avoid npm conflicts
- Add publishConfig with public access for scoped packages
- Resolves NPM 404 Not Found error during publishing
- Enables successful publication to npm registry

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

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

Author: PaulDuvall

claude-dev-toolkit/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "claude-dev-toolkit",
+  "name": "@paulduvall/claude-dev-toolkit",
   "version": "0.0.1-alpha.1",
   "description": "Custom commands toolkit for Claude Code - streamline your development workflow",
   "author": "Paul Duvall",
@@ -66,5 +66,8 @@
     "scripts/validate.js",
     "README.md",
     "LICENSE"
-  ]
+  ],
+  "publishConfig": {
+    "access": "public"
+  }
 }