feat: simplify MCP server creation process

- Remove unused imports to streamline the code. - Update prompt language from TypeScript to JavaScript to reflect changes in the server's handling. - Revise existing server creation tool parameters by removing the overwrite option for clarity. - Adjust success messages to consistently refer to JavaScript MCP servers. - Rename tools for consistency, changing "createServer" to "createMcpServer" and "updateServer" to "updateMcpServer". - Enhance error messages to be more specific and informative. - Maintain overall server functionality while improving code readability and maintainability.

Author: SerhatUzbas