* add default assets for user profile
* add recipe avatar
* change user_id to UUID
* add profile image upload
* setup image cache keys
* cleanup tests and add image tests
* purge user data on delete
* new user repository tests
* add user_id validator for int -> UUID conversion
* delete depreciated route
* force set content type
* refactor tests to use temp directory
* validate parent exists before createing
* set user_id to correct type
* update instruction id
* reset primary key on migration
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