Aggiunge annunci in-app/sito, contatti e migliora UI copertina sul portale.

Include admin/API/banner nativi, form contatti e reset copertina standard con layout edit più ampio.

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

backend/app/controllers/public/contacts_controller.rb

@@ -0,0 +1,46 @@
+module Public
+  class ContactsController < WebBaseController
+    def show
+      @inquiry = empty_inquiry
+    end
+
+    def create
+      result = Contacts::SubmitInquiry.call(params: inquiry_params, ip: request.remote_ip)
+
+      if result.ok?
+        redirect_to public_contatti_path, notice: t("flash.contacts.sent")
+        return
+      end
+
+      @inquiry = inquiry_params
+      flash.now[:alert] = t("flash.contacts.#{result.error}")
+      render :show, status: result.error == :throttled ? :too_many_requests : :unprocessable_entity
+    end
+
+    private
+
+    def inquiry_params
+      {
+        name: params[:name].to_s,
+        email: params[:email].to_s,
+        club_name: params[:club_name].to_s,
+        topic: params[:topic].to_s,
+        message: params[:message].to_s,
+        website: params[:website].to_s,
+        accept_privacy: params[:accept_privacy].to_s
+      }
+    end
+
+    def empty_inquiry
+      {
+        name: "",
+        email: "",
+        club_name: "",
+        topic: "commercial",
+        message: "",
+        website: "",
+        accept_privacy: ""
+      }
+    end
+  end
+end