Localizza errori API, sistema layout mobile e documenta allineamento iOS.

Gli header Accept-Language dalle app e i fix di padding/menu sul web chiudono il giro password-policy; il doc guida il lavoro su Mac.

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

backend/app/controllers/api/v1/auth_controller.rb

@@ -22,18 +22,18 @@ module Api
         if user&.authenticate(params[:password])
           render json: token_response(user), status: :ok
         else
-          render json: { error: "Invalid credentials" }, status: :unauthorized
+          render json: { error: I18n.t("flash.sessions.invalid_credentials") }, status: :unauthorized
         end
       end
 
       def logout
-        render json: { message: "Logged out" }
+        render json: { message: I18n.t("flash.sessions.logged_out") }
       end
 
       def refresh
         payload = JsonWebToken.decode(params[:refresh_token] || bearer_token)
         user = User.find_by(id: payload&.dig(:user_id))
-        return render json: { error: "Invalid token" }, status: :unauthorized unless user
+        return render json: { error: I18n.t("flash.sessions.invalid_token") }, status: :unauthorized unless user
 
         render json: token_response(user)
       end
@@ -45,7 +45,7 @@ module Api
       def forgot_password
         Users::RequestPasswordReset.call(email: params[:email])
         render json: {
-          message: "If the email is registered, you will receive a password reset link shortly."
+          message: I18n.t("flash.password_resets.email_sent")
         }
       end