added frontend + securing beta server invites

web/auth.ts

@@ -0,0 +1,30 @@
+import NextAuth from "next-auth"
+import Discord from "next-auth/providers/discord"
+
+export const { handlers, signIn, signOut, auth } = NextAuth({
+    providers: [
+        Discord({
+            authorization: "https://discord.com/api/oauth2/authorize?scope=identify+email+guilds",
+        }),
+    ],
+    callbacks: {
+        async jwt({ token, account, profile }) {
+            if (account) {
+                token.accessToken = account.access_token
+                token.discordId = account.providerAccountId
+            }
+            if (profile) {
+                token.discordId = profile.id
+            }
+            return token
+        },
+        async session({ session, token }) {
+            // @ts-expect-error - accessToken is not strictly typed in session yet
+            session.accessToken = token.accessToken
+            if (session.user && token.discordId) {
+                session.user.id = token.discordId as string
+            }
+            return session
+        },
+    },
+})