Commit iniziale di eminuxCRM: CRM Rails con pipeline, campagne email e Docker.

Include autenticazione, progetti isolati, mail marketing HTML con SMTP, test A/B e editor WYSIWYG.

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

app/views/mail_templates/_form.html.erb

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+<%= form_with model: mail_template, class: "grid gap-6 lg:grid-cols-[1fr_16rem]" do |f| %>
+  <div class="space-y-6 rounded-xl border border-zinc-200 bg-white text-zinc-900 dark:border-zinc-800 dark:bg-zinc-900 dark:text-zinc-100 p-6">
+    <%= render "shared/errors", object: mail_template %>
+
+    <div>
+      <label class="mb-1 block text-sm font-medium">Nome</label>
+      <%= f.text_field :name, required: true, class: input_class %>
+    </div>
+    <div>
+      <label class="mb-1 block text-sm font-medium">Oggetto</label>
+      <%= f.text_field :subject, required: true, class: input_class %>
+    </div>
+    <div>
+      <%= render "shared/wysiwyg_field", form: f, method: :body_html, label: "Corpo HTML" %>
+    </div>
+
+    <div class="flex flex-wrap items-center gap-2 border-t border-zinc-100 pt-4 dark:border-zinc-800">
+      <%= f.submit mail_template.new_record? ? "Crea template" : "Salva", class: btn_primary %>
+      <%= link_to "Annulla", mail_templates_path, class: btn_secondary %>
+    </div>
+  </div>
+
+  <div class="space-y-4">
+    <%= render "shared/merge_tokens" %>
+    <% unless mail_template.new_record? %>
+      <%= button_to "Elimina template", mail_template_path(mail_template), method: :delete,
+            class: btn_danger,
+            form: { data: { turbo_confirm: "Eliminare #{mail_template.name}?" } } %>
+    <% end %>
+  </div>
+<% end %>