Aggiunge i tornei con hub, pagina pubblica e tabellone per semifinali e finali.

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

backend/app/views/public/tournaments/new.html.erb

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+<% content_for :title, t("tournaments.new.title", name: @club.name) %>
+<% content_for :robots, "noindex, nofollow" %>
+
+<div class="wrap wrap--portal tournament-new" style="padding-top:20px">
+  <nav class="team-dashboard-nav">
+    <%= link_to "← #{t("tournaments.index.heading")}", public_club_tournaments_path(@club), class: "team-dashboard-nav__club" %>
+  </nav>
+  <h1><%= t("tournaments.new.heading") %></h1>
+  <p class="tournament-new__lead"><%= t("tournaments.index.lead") %></p>
+
+  <div class="card" style="margin-top:16px">
+    <%= form_with model: @tournament, url: public_club_tournaments_path(@club), method: :post, html: { class: "tournament-form", multipart: true, data: { tournament_form: true } } do %>
+      <div class="tournament-form__field tournament-form__full">
+        <%= label_tag "tournament[name]", t("tournaments.form.name") %>
+        <%= text_field_tag "tournament[name]", @tournament.name, required: true %>
+      </div>
+
+      <div class="tournament-form__field">
+        <%= label_tag "tournament[sport_key]", t("tournaments.form.sport") %>
+        <%= select_tag "tournament[sport_key]",
+              options_for_select(Sports::Catalog.as_api_list.map { |s| [s[:label], s[:key]] }, @tournament.sport_key) %>
+      </div>
+
+      <div class="tournament-form__field">
+        <%= label_tag "tournament[venue]", t("tournaments.form.venue") %>
+        <%= text_field_tag "tournament[venue]", @tournament.venue %>
+      </div>
+
+      <div class="tournament-form__field">
+        <%= label_tag "tournament[starts_on]", t("tournaments.form.starts_on") %>
+        <%= date_field_tag "tournament[starts_on]", @tournament.starts_on, required: true %>
+      </div>
+
+      <div class="tournament-form__field">
+        <%= label_tag "tournament[ends_on]", t("tournaments.form.ends_on") %>
+        <%= date_field_tag "tournament[ends_on]", @tournament.ends_on, required: true %>
+      </div>
+
+      <div class="tournament-form__field">
+        <%= label_tag "tournament[format_kind]", t("tournaments.form.format") %>
+        <%= select_tag "tournament[format_kind]",
+              options_for_select(Tournament::FORMAT_KINDS.map { |k| [t("tournaments.form.formats.#{k}"), k] }, @tournament.format_kind),
+              data: { tournament_format: true } %>
+      </div>
+
+      <div class="tournament-form__field" data-knockout-field>
+        <%= label_tag "tournament[knockout_size]", t("tournaments.form.knockout_size") %>
+        <%= select_tag "tournament[knockout_size]", options_for_select([2, 4, 8, 16], @tournament.knockout_size || 4) %>
+      </div>
+
+      <div class="tournament-form__field tournament-form__full">
+        <%= label_tag "tournament[logo_file]", t("tournaments.form.logo") %>
+        <%= file_field_tag "tournament[logo_file]", accept: "image/png,image/jpeg,image/webp" %>
+        <p class="tournament-hub-hint" style="margin:6px 0 0"><%= t("tournaments.form.logo_hint") %></p>
+      </div>
+
+      <div class="tournament-form__field tournament-form__full">
+        <%= label_tag "tournament[courts]", t("tournaments.form.courts") %>
+        <%= text_area_tag "tournament[courts]", Array(@tournament.courts).join("\n"), rows: 3 %>
+      </div>
+
+      <div class="tournament-form__actions">
+        <%= submit_tag t("tournaments.new.submit"), class: "btn btn-primary" %>
+      </div>
+    <% end %>
+  </div>
+</div>
+<script>
+  document.querySelectorAll("[data-tournament-form]").forEach(function (form) {
+    var format = form.querySelector("[data-tournament-format]");
+    var knockout = form.querySelector("[data-knockout-field]");
+    if (!format || !knockout) return;
+    var sync = function () {
+      knockout.hidden = !(format.value === "knockout" || format.value === "mixed");
+    };
+    format.addEventListener("change", sync);
+    sync();
+  });
+</script>