fix(server): catch SMTP errors in auth/request gracefully

Return 200 ok even if email send fails — token is saved in DB and
magic link is logged to console. Prevents 500 on transient SMTP issues.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

server/server.js

@@ -75,7 +75,10 @@ function createServer(db) {
       const token = crypto.randomBytes(32).toString('hex')
       const expiresAt = Date.now() + 24 * 60 * 60 * 1000
       db.createMagicToken(token, profile.id, expiresAt)
-      await sendMagicLink(email, token)
+      await sendMagicLink(email, token).catch(err => {
+        // Log SMTP errors but don't fail the request — token is in DB, link logged
+        console.error('[server] email send failed:', err.message ?? err)
+      })
       return send(res, 200, { ok: true })
     }