* feat: init slack integration
* dev: create model and update existing view for slack
* dev: update slack sync model and create view to install slack
* dev: workspace integration query
* dev: update the metadata validation for access_token and team_id and save config to database
* dev: update validation for team_id
* dev: update validation
* dev: update validations
* dev: remove bot access token field from sync
* dev: handle integrity exception