Fix GitHub Actions deployment by removing .claude worktree from git tracking

The .claude/worktrees/amazing-turing path was tracked as a git submodule
without a corresponding .gitmodules entry, causing 'actions/checkout@v4'
to fail during CI/CD. Added .claude/ to .gitignore and removed it from
git index to prevent future conflicts.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: githajae

.claude/worktrees/amazing-turing

@@ -27,3 +27,6 @@ codekit-config.json
 .sass-cache
 _asset_bundler_cache
 _site
+
+# Claude AI agent files
+.claude/