chore: update .gitignore and local changes

- Add .mcp.json to .gitignore
- Update database and test configurations
- Add quick publish script

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

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

.gitignore

@@ -126,3 +126,6 @@ n8n-mcp-wrapper.sh
 
 # Package tarballs
 *.tgz
+
+# MCP configuration files
+.mcp.json