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/views/admin/announcements/_form.html.erb

@@ -0,0 +1,79 @@
+<%= form_with model: announcement, url: (announcement.persisted? ? admin_announcement_path(announcement) : admin_announcements_path),
+      method: (announcement.persisted? ? :patch : :post), local: true, class: "admin-form" do |f| %>
+  <div class="admin-form-row">
+    <div>
+      <%= f.label :kind, t("admin.announcements.form.kind") %>
+      <%= f.select :kind, AppAnnouncement::KINDS.map { |k| [t("admin.announcements.kind.#{k}"), k] } %>
+    </div>
+    <div>
+      <%= f.label :severity, t("admin.announcements.form.severity") %>
+      <%= f.select :severity, AppAnnouncement::SEVERITIES.map { |k| [t("admin.announcements.severity.#{k}"), k] } %>
+    </div>
+  </div>
+
+  <div>
+    <%= f.label :status, t("admin.announcements.form.status") %>
+    <%= f.select :status, AppAnnouncement::STATUSES.map { |k| [t("admin.announcements.status.#{k}"), k] } %>
+  </div>
+
+  <fieldset class="admin-channels">
+    <legend><%= t("admin.announcements.form.channels") %></legend>
+    <label class="admin-checkbox">
+      <%= f.check_box :show_on_app %>
+      <span><%= t("admin.announcements.channels.app") %></span>
+    </label>
+    <label class="admin-checkbox">
+      <%= f.check_box :show_on_web_public %>
+      <span><%= t("admin.announcements.channels.web_public") %></span>
+    </label>
+    <label class="admin-checkbox">
+      <%= f.check_box :show_on_web_private %>
+      <span><%= t("admin.announcements.channels.web_private") %></span>
+    </label>
+    <p class="muted admin-form-hint"><%= t("admin.announcements.form.channels_hint") %></p>
+  </fieldset>
+
+  <div>
+    <%= f.label :title, t("admin.announcements.form.title") %>
+    <%= f.text_field :title, required: true, maxlength: 120 %>
+  </div>
+
+  <div>
+    <%= f.label :body, t("admin.announcements.form.body") %>
+    <%= f.text_area :body, required: true, rows: 5, maxlength: 2000 %>
+  </div>
+
+  <div class="admin-form-row">
+    <div>
+      <%= f.label :starts_at, t("admin.announcements.form.starts_at") %>
+      <%= f.datetime_field :starts_at, value: announcement.starts_at&.in_time_zone&.strftime("%Y-%m-%dT%H:%M") %>
+    </div>
+    <div>
+      <%= f.label :ends_at, t("admin.announcements.form.ends_at") %>
+      <%= f.datetime_field :ends_at, value: announcement.ends_at&.in_time_zone&.strftime("%Y-%m-%dT%H:%M") %>
+    </div>
+  </div>
+  <p class="muted admin-form-hint"><%= t("admin.announcements.form.window_hint") %></p>
+
+  <div>
+    <%= f.label :action_url, t("admin.announcements.form.action_url") %>
+    <%= f.url_field :action_url, placeholder: "https://" %>
+  </div>
+  <p class="muted admin-form-hint"><%= t("admin.announcements.form.action_url_hint") %></p>
+
+  <div>
+    <%= f.label :action_label, t("admin.announcements.form.action_label") %>
+    <%= f.text_field :action_label, maxlength: 40 %>
+  </div>
+
+  <label class="admin-checkbox">
+    <%= f.check_box :dismissible %>
+    <span><%= t("admin.announcements.form.dismissible") %></span>
+  </label>
+  <p class="muted admin-form-hint"><%= t("admin.announcements.form.dismissible_hint") %></p>
+
+  <div class="admin-form-actions">
+    <%= f.submit (announcement.persisted? ? t("admin.announcements.form.submit_update") : t("admin.announcements.form.submit_create")), class: "admin-btn admin-btn--primary" %>
+    <%= link_to t("admin.announcements.form.cancel"), admin_announcements_path, class: "admin-btn admin-btn--outline" %>
+  </div>
+<% end %>