Billing Stripe, link regia mobile e staff solo trasmissione.

Aggiunge fatturazione club, pagina regia condivisibile senza account, roster squadre e rimuove la modalità controller dall'app (v1.1.0).

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

backend/spec/requests/public/club_billing_spec.rb

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+require "rails_helper"
+
+RSpec.describe "Public club billing", type: :request do
+  let!(:coach) do
+    User.create!(email: "billing-coach@test.it", name: "Coach", password: "password123", role: "coach")
+  end
+  let!(:club) do
+    c = Club.create!(name: "Billing HTTP Club", sport: "volleyball", primary_color: "#e53935", secondary_color: "#ffffff",
+      billing_legal_name: "ASD Billing", billing_email: "bill@test.it", billing_address_line: "Via 1",
+      billing_city: "Milano", billing_postal_code: "20100", billing_vat_number: "12345678901",
+      billing_recipient_code: "ABCDEFG")
+    ClubMembership.create!(user: coach, club: c, role: "owner")
+    c.teams.create!(name: "U15", sport: "volleyball")
+    load Rails.root.join("db/seeds/plans.rb")
+    Billing::AssignPlan.call(club: c, plan_slug: "free")
+    c
+  end
+
+  def login!
+    post public_login_path, params: { email: coach.email, password: "password123" }
+  end
+
+  it "mostra pagamenti e fatture in billing" do
+    club.billing_payments.create!(
+      amount_cents: 4000, currency: "eur", status: "paid", paid_at: Time.current,
+      description: "Premium Light", stripe_invoice_id: "in_spec_1"
+    )
+    club.billing_invoices.create!(
+      number: "2026/100", issued_on: Date.current, amount_cents: 4000, status: "draft"
+    )
+
+    login!
+    get public_club_billing_path(club)
+
+    expect(response).to have_http_status(:ok)
+    expect(response.body).to include("Pagamenti effettuati")
+    expect(response.body).to include("Fatture")
+    expect(response.body).not_to include("Aruba")
+    expect(response.body).to include("Premium Light")
+    expect(response.body).to include("2026/100")
+  end
+
+  it "salva profilo fatturazione" do
+    club.update!(billing_recipient_code: nil, billing_pec: nil)
+    login!
+    patch public_club_billing_profile_path(club), params: {
+      club: { billing_recipient_code: "XYZABC1", billing_pec: "" }
+    }
+    expect(response).to redirect_to(public_club_billing_path(club))
+    expect(club.reload.billing_recipient_code).to eq("XYZABC1")
+  end
+
+  it "blocca checkout premium senza profilo completo" do
+    club.update!(billing_vat_number: nil, billing_fiscal_code: nil)
+    allow(MatchLiveTv).to receive(:stripe_enabled?).and_return(true)
+
+    login!
+    get public_club_checkout_path(club, plan: "premium_light")
+
+    expect(response).to redirect_to(public_club_billing_profile_path(club))
+  end
+end