The migration file 6.0.6.sql was deleted as it contained default LLM server configurations that are no longer needed. The file was originally used to set up local LLM server settings including model paths and URLs, but these configurations are now handled differently in the system.
Removed the default server configuration section from migrations as these values should now be managed through environment variables. Updated default database username from 'postgres' to 'gbuser' in bootstrap and changed default database name from 'gbuser' to 'botserver' in config to align with the removed server configuration defaults.
