User registation working. Sidebar built. Dashboard built. TOTP enable works - TOTP login works

app/controllers/users_controller.rb

@@ -0,0 +1,36 @@
+class UsersController < ApplicationController
+  allow_unauthenticated_access only: %i[ new create ]
+  before_action :ensure_first_run, only: %i[ new create ]
+
+  def new
+    @user = User.new
+  end
+
+  def create
+    @user = User.new(user_params)
+
+    # First user becomes admin automatically
+    @user.admin = true if User.count.zero?
+    @user.status = "active"
+
+    if @user.save
+      start_new_session_for @user
+      redirect_to root_path, notice: "Welcome to Clinch! Your account has been created."
+    else
+      render :new, status: :unprocessable_entity
+    end
+  end
+
+  private
+
+  def user_params
+    params.require(:user).permit(:email_address, :password, :password_confirmation)
+  end
+
+  def ensure_first_run
+    # Only allow signup if there are no users (first-run scenario)
+    if User.exists?
+      redirect_to signin_path, alert: "Registration is closed. Please sign in."
+    end
+  end
+end