* introduce scaffold for new models
* wip: shoutrrr wrapper (may remove)
* update schema files
* gen: ent code
* gen: migrations
* go mod tidy
* add group_id to notifier
* db migration
* new mapper helpers
* notifier repo
* introduce experimental adapter pattern for hdlrs
* refactor adapters to fit more common use cases
* new routes for notifiers
* update errors to fix validation panic
* go tidy
* reverse checkbox label display
* wip: notifiers UI
* use badges instead of text
* improve documentation
* add scaffold schema reference
* remove notifier service
* refactor schema folder
* support group edges via scaffold
* delete test file
* include link to API docs
* audit and update documentation + improve format
* refactor schema edges
* refactor
* add custom validator
* set validate + order fields by name
* fix failing tests
