fix: Add slug column to parties table and update seed data

- Added slug column to parties table via migration
- Updated seed data to properly assign slug values to Party records
- Fixed NoMethodError when assigning slug attribute in seed file

This resolves the ActiveModel::UnknownAttributeError that occurred
when trying to set the slug attribute on Party model instances.

app/views/parties/show.html.erb

@@ -0,0 +1,37 @@
+<div class="container mt-4">
+  <div class="row">
+    <div class="col-md-8">
+      <h1><%= @party.name %></h1>
+      
+      <% if @party.image.present? %>
+        <%= image_tag @party.image, class: "img-fluid rounded mb-3" %>
+      <% end %>
+      
+      <p><%= @party.description %></p>
+      
+      <div class="card mb-3">
+        <div class="card-body">
+          <h5 class="card-title">Event Details</h5>
+          <p class="card-text">
+            <strong>Venue:</strong> <%= @party.venue_name %><br>
+            <strong>Address:</strong> <%= @party.venue_address %><br>
+            <strong>Start Time:</strong> <%= @party.start_time.strftime("%B %d, %Y at %I:%M %p") %><br>
+            <strong>End Time:</strong> <%= @party.end_time.strftime("%B %d, %Y at %I:%M %p") %>
+          </p>
+        </div>
+      </div>
+    </div>
+    
+    <div class="col-md-4">
+      <div class="card">
+        <div class="card-body">
+          <h5 class="card-title">Ticket Information</h5>
+          <p class="card-text">
+            <!-- Ticket types would go here -->
+            <a href="#" class="btn btn-primary">Get Tickets</a>
+          </p>
+        </div>
+      </div>
+    </div>
+  </div>
+</div>