Aggiunge gestione account con cambio password su web e app.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/controllers/public/accounts_controller.rb

@@ -0,0 +1,39 @@
+module Public
+  class AccountsController < WebBaseController
+    before_action :require_login!
+
+    def show
+    end
+
+    def update
+      name = params[:name].to_s.strip
+      if name.blank?
+        flash.now[:alert] = t("flash.accounts.name_required")
+        return render :show, status: :unprocessable_entity
+      end
+
+      if current_user.update(name: name)
+        redirect_to public_account_path, notice: t("flash.accounts.profile_updated")
+      else
+        flash.now[:alert] = current_user.errors.full_messages.to_sentence
+        render :show, status: :unprocessable_entity
+      end
+    end
+
+    def update_password
+      result = Users::ChangePassword.call(
+        user: current_user,
+        current_password: params[:current_password],
+        password: params[:password],
+        password_confirmation: params[:password_confirmation]
+      )
+
+      unless result.ok?
+        flash.now[:alert] = t("flash.accounts.password_#{result.error}")
+        return render :show, status: :unprocessable_entity
+      end
+
+      redirect_to public_account_path, notice: t("flash.accounts.password_updated")
+    end
+  end
+end