Initial commit: Minecraft dashboard

Next.js 16 + Tailwind v4 + shadcn v4 dashboard for managing a modded
Forge 1.20.1 server. Includes server controls, player management, mod
manager with Modrinth search and dependency resolution, world backups,
snapshots, analytics, logs, and chat bridge.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

lib/auth.ts

@@ -0,0 +1,30 @@
+import NextAuth from "next-auth";
+import Credentials from "next-auth/providers/credentials";
+
+export const { handlers, signIn, signOut, auth } = NextAuth({
+  providers: [
+    Credentials({
+      name: "Admin Login",
+      credentials: {
+        username: { label: "Username", type: "text" },
+        password: { label: "Password", type: "password" },
+      },
+      async authorize(credentials) {
+        if (
+          credentials?.username === process.env.ADMIN_USERNAME &&
+          credentials?.password === process.env.ADMIN_PASSWORD
+        ) {
+          return { id: "1", name: "Admin" };
+        }
+        return null;
+      },
+    }),
+  ],
+  pages: {
+    signIn: "/login",
+  },
+  session: {
+    strategy: "jwt",
+    maxAge: 24 * 60 * 60,
+  },
+});