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/opportunities/index.html.erb

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+<div class="space-y-4">
+  <div class="flex items-center justify-between">
+    <h1 class="text-2xl font-semibold">Opportunità</h1>
+    <div class="flex gap-2">
+      <%= link_to "Export CSV", opportunities_path(format: :csv), class: btn_secondary %>
+      <%= link_to "Nuova", new_opportunity_path, class: btn_primary %>
+    </div>
+  </div>
+  <div class="overflow-hidden rounded-xl border border-zinc-200 bg-white text-zinc-900 dark:border-zinc-800 dark:bg-zinc-900 dark:text-zinc-100">
+    <table class="<%= table_class %>">
+      <thead class="bg-zinc-50 text-left text-xs uppercase text-zinc-500 dark:bg-zinc-800 dark:text-zinc-400">
+        <tr><th class="px-4 py-3">Organizzazione</th><th class="px-4 py-3">Nome</th><th class="px-4 py-3">Stage</th><th class="px-4 py-3">Valore</th><th class="px-4 py-3">Owner</th></tr>
+      </thead>
+      <tbody class="divide-y divide-zinc-100 dark:divide-zinc-800">
+        <% @opportunities.each do |opp| %>
+          <tr>
+            <td class="px-4 py-3"><%= link_to opp.organization.name, opp.organization, class: "hover:underline" %></td>
+            <td class="px-4 py-3"><%= opp.name %></td>
+            <td class="px-4 py-3"><%= stage_badge(opp.pipeline_stage) %></td>
+            <td class="px-4 py-3"><%= format_money(opp.estimated_value) %></td>
+            <td class="px-4 py-3"><%= opp.assigned_user&.full_name %></td>
+          </tr>
+        <% end %>
+      </tbody>
+    </table>
+  </div>
+  <%== pagy_nav(@pagy) if @pagy.pages > 1 %>
+</div>