add entry requests, invite new users

app/views/entries/index.html.erb

@@ -9,6 +9,8 @@
           <span class="text-xl font-light text-slate-400">Wiki</span>
         </div>
         <div class="flex items-center gap-3">
+          <%= link_to "Request Entry", new_request_path,
+                      class: "text-xs font-bold text-emerald-700 px-3 py-2 rounded-md border border-emerald-200 bg-emerald-50 hover:bg-emerald-100 transition" %>
           <%= link_to "Download XLSX", download_entries_path(format: :xlsx),
                       class: "text-xs font-bold text-indigo-700 px-3 py-2 rounded-md border border-indigo-200 bg-indigo-50 hover:bg-indigo-100 transition" %>
           <% if admin? %>
@@ -21,6 +23,21 @@
     </div>
   </header>
 
+  <!-- Flash messages -->
+  <% if flash.any? %>
+    <div class="max-w-7xl mx-auto px-4 mt-4 w-full">
+      <% flash.each do |type, message| %>
+        <div class="<%= type == 'notice' ? 'bg-green-50 border border-green-200 text-green-700' : 'bg-red-50 border border-red-200 text-red-700' %> px-4 py-3 rounded-lg mb-4 relative" role="alert">
+          <span class="block sm:inline pr-8"><%= message %></span>
+          <button type="button" class="absolute top-0 right-0 mt-3 mr-3 text-current opacity-50 hover:opacity-100 transition" onclick="this.parentElement.remove()">
+            <svg class="w-4 h-4" fill="currentColor" viewBox="0 0 20 20">
+              <path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"></path>
+            </svg>
+          </button>
+        </div>
+      <% end %>
+    </div>
+  <% end %>
 
   <div class="flex-1 flex flex-col">
     <section id="search">