feat: latin-only slugs, server-side avatar generation, remove unused User fields

server/src/routes/oauth-social.js

@@ -1,4 +1,5 @@
 import { normalizeEmail } from '../lib/auth.js'
+import { generateAvatar } from '../lib/generate-avatar.js'
 import { prisma } from '../lib/prisma.js'
 
 function clientRedirect(fastify, reply, token) {
@@ -57,7 +58,7 @@ async function findOrCreateUserFromOAuth({ provider, providerUserId, accessToken
     data: {
       email: norm,
       displayName: norm.split('@')[0],
-      avatar: null,
+      avatar: await generateAvatar(norm),
       avatarStyle: 'avataaars',
     },
   })