Extract the duplicated user-lookup, provider-selection and size-clamping
logic from the v1 GetAvatar and v2 avatarGet handlers into a single
avatar.GetAvatarForUsername helper. Both handlers now call it and keep
only their transport-specific code (v1: echo size parse + c.Blob, v2:
huma input/response). Pure refactor, behavior is unchanged.
Bot users now render with a cool-toned (blue/cyan/violet/teal/indigo)
marble variant so they're visually distinguishable from human users.
Marble's rendering logic is parameterized with a palette; the route
forces the bot palette whenever the resolved user is a bot, overriding
whatever avatar provider they'd otherwise inherit.
Email notifications now display user mentions with inline avatar images for improved visual recognition and easier identification. Mentions gracefully fall back to display names if avatars are unavailable.
Fix getting avatar based on email
Remove avatarUrl from user struct
Fix staticcheck
Add default avatar size
Add config option for caching avatars
go mod vendor
Add swagger docs
Add proxying gravatar requests for user avatars
Co-authored-by: kolaente <k@knt.li>
Reviewed-on: https://kolaente.dev/vikunja/api/pulls/148