fix: snapshot current Discord profile on web shares

lib/share/current-author.ts

@@ -6,6 +6,7 @@ import { db } from "@/db";
 import { users } from "@/db/schema";
 import type { SessionWithDiscord } from "@/lib/auth/auth";
 import { authOptions } from "@/lib/auth/auth-options";
+import { getDiscordMemberProfile } from "@/lib/discord/discord";
 import { ShareHttpError } from "@/lib/share/http-error";
 import { requireShareSessionIdentity } from "@/lib/share/session";
 
@@ -22,10 +23,17 @@ export async function requireShareAuthor() {
     .limit(1);
   if (!user) throw new ShareHttpError("Unauthorized", 401);
 
+  const profile = await getDiscordMemberProfile(discordId);
+
   return {
     userId: user.id,
     discordId,
-    displayName: user.name || session?.user?.name || "Discord user",
+    displayName:
-    avatarUrl: user.image || session?.user?.image || null,
+      profile?.globalName?.trim() ||
+      profile?.username ||
+      user.name ||
+      session?.user?.name ||
+      "Discord user",
+    avatarUrl: profile?.avatarUrl || user.image || session?.user?.image || null,
   };
 }