Merge last_run column migration into agents table creation

Since there’s no public release, I’m not too concerned about backwards
incompatibility
Add activity option to resource test helper
Use raw knex for db seeding
Trigger both app seeds and test seeds for test scaffolding
Allow optional inclusion of token for resource creation
Properly check for empty response login on login store
Correctly fetch all when retrieving settings
Automatically convert numeric setting values
Reset settings cache when settings updated
Check both response and login value as undefined
Implement resultsPerPage setting to limit index results