feat(groups): add fail-closed admission management

apps/web/src/lib/audit.ts

@@ -5,9 +5,9 @@ import { db } from "@/lib/database";
 
 const UI_ACCESSED = "games.minecraft.account-manager.ui.accessed";
 
-export async function recordAdminEvent(
+export async function recordAdminSubjectEvent(
   admin: { email: string | null; name: string | null },
-  targetUserId: string,
+  subject: string,
   type: string,
   data: Record<string, unknown>,
 ) {
@@ -16,12 +16,21 @@ export async function recordAdminEvent(
   return recordEvent(db, {
     type,
     source: "/web/admin",
-    subject: `user/${targetUserId}`,
+    subject,
     ipAddress: ipAddress ?? undefined,
     data: { ...data, adminEmail: admin.email, adminName: admin.name },
   });
 }
 
+export async function recordAdminEvent(
+  admin: { email: string | null; name: string | null },
+  targetUserId: string,
+  type: string,
+  data: Record<string, unknown>,
+) {
+  return recordAdminSubjectEvent(admin, `user/${targetUserId}`, type, data);
+}
+
 export async function recordUserEvent(
   user: { id: string },
   type: string,

apps/web/src/lib/discord-identity.ts

@@ -0,0 +1,33 @@
+import { getGuildMemberIdentity } from "@minecraft-account-manager/minecraft";
+import { logger } from "@/lib/logger";
+
+export async function discordIdentity(input: {
+  discordUserId: string;
+  discordUsername: string;
+  discordGlobalName: string | null;
+}) {
+  const guildId = process.env.DISCORD_GUILD_ID?.trim();
+  const botToken = process.env.DISCORD_BOT_TOKEN?.trim();
+  const fallback = {
+    id: input.discordUserId,
+    username: input.discordUsername,
+    globalName: input.discordGlobalName,
+    nickname: null as string | null,
+    live: false,
+  };
+  if (!guildId || !botToken) return fallback;
+
+  try {
+    return { ...await getGuildMemberIdentity({
+      guildId,
+      discordUserId: input.discordUserId,
+      botToken,
+    }), live: true };
+  } catch (error) {
+    logger.warn(
+      { err: error, event: "discord.identity_lookup_failed", discordUserId: input.discordUserId },
+      "Discord guild identity lookup failed",
+    );
+    return fallback;
+  }
+}