Aggiunge copertina sponsor custom solo Premium Full, con override in wizard e slate sui nodi di streaming.

Permette upload da portale e app con ereditarietà partita→squadra→società, generazione MP4 via ffmpeg e distribuzione su home lab e nodi CPX per pause e assenza segnale.

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

backend/spec/services/streams/cover_resolver_spec.rb

@@ -0,0 +1,71 @@
+require "rails_helper"
+
+RSpec.describe Streams::CoverResolver do
+  let!(:club) { Club.create!(name: "Club", sport: "volleyball", primary_color: "#e53935", secondary_color: "#ffffff") }
+  let!(:team) { club.teams.create!(name: "Team", sport: "volleyball") }
+  let!(:match) { team.matches.create!(opponent_name: "Opp", sport: "volleyball") }
+
+  before do
+    load Rails.root.join("db/seeds/plans.rb")
+    Billing::AssignPlan.call(club: club, plan_slug: "free")
+  end
+
+  def attach_ready_cover(record, name)
+    record.cover_image.attach(
+      io: StringIO.new("fake-image"),
+      filename: "#{name}.png",
+      content_type: "image/png"
+    )
+    record.cover_slate.attach(
+      io: StringIO.new("fake-mp4"),
+      filename: "#{name}.mp4",
+      content_type: "video/mp4"
+    )
+    path = Streams::CoverSlatePaths.expected_path(record)
+    FileUtils.mkdir_p(File.dirname(path))
+    File.write(path, "fake mp4")
+    path
+  end
+
+  it "restituisce default senza Premium Full" do
+    resolver = described_class.new(match)
+    expect(resolver.cover_source).to eq("default")
+    expect(resolver.effective_cover_url).to eq("/images/copertina-canale.png")
+  end
+
+  context "con Premium Full" do
+    before { Billing::AssignPlan.call(club: club, plan_slug: "premium_full") }
+
+    it "preferisce partita, poi squadra, poi società" do
+      attach_ready_cover(club, "club")
+      attach_ready_cover(team, "team")
+      attach_ready_cover(match, "match")
+
+      resolver = described_class.new(match)
+      expect(resolver.cover_source).to eq("match")
+    end
+
+    it "eredita dalla squadra se la partita non ha override" do
+      attach_ready_cover(club, "club")
+      attach_ready_cover(team, "team")
+
+      resolver = described_class.new(match)
+      expect(resolver.cover_source).to eq("team")
+    end
+
+    it "eredita dalla società se mancano squadra e partita" do
+      attach_ready_cover(club, "club")
+
+      resolver = described_class.new(match)
+      expect(resolver.cover_source).to eq("club")
+    end
+
+    it "ignora cover_image senza slate MP4 pronta su disco" do
+      attach_ready_cover(team, "team")
+      match.cover_image.attach(io: StringIO.new("img"), filename: "m.png", content_type: "image/png")
+
+      resolver = described_class.new(match)
+      expect(resolver.cover_source).to eq("team")
+    end
+  end
+end