ui: shorten button labels to "Chat" and "Metrics", restore Chat-first order

- "Swiss AI Chat" → "Chat" and "Metrics Dashboard" → "Metrics". The
  expanded card sits below the model title that already says
  "swiss-ai/..." — repeating "Swiss AI" in the button label is noise,
  and "Dashboard" doesn't carry meaning past the icon.
- Restore Chat-first order so Metrics ends up at the right edge, where
  it lived before the brief mid-iteration swap.

Author: robmsmt

frontend/src/components/ui/ModelCard.svelte

@@ -187,9 +187,21 @@
       on:keydown|stopPropagation
       role="region"
     >
-      <!-- Action buttons: Metrics (secondary, left) then Swiss AI Chat
-           (primary, right). Right-aligned as a group. -->
+      <!-- Action buttons: Chat (primary) + Metrics, right-aligned. -->
       <div class="flex flex-wrap justify-end gap-2">
+        <a
+          href={chatUrl}
+          target="_blank"
+          rel="noopener noreferrer"
+          class="inline-flex items-center gap-2 px-4 py-2 rounded-md bg-black hover:bg-neutral-800 text-white text-sm font-medium transition-colors"
+        >
+          <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+            <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"></path>
+            <polyline points="15 3 21 3 21 9"></polyline>
+            <line x1="10" y1="14" x2="21" y2="3"></line>
+          </svg>
+          Chat
+        </a>
         {#if metricsUrl}
           <a
             href={metricsUrl}
@@ -201,22 +213,9 @@
               <path d="M3 3v18h18"></path>
               <path d="M7 15l4-4 4 4 5-5"></path>
             </svg>
-            Metrics Dashboard
+            Metrics
           </a>
         {/if}
-        <a
-          href={chatUrl}
-          target="_blank"
-          rel="noopener noreferrer"
-          class="inline-flex items-center gap-2 px-4 py-2 rounded-md bg-black hover:bg-neutral-800 text-white text-sm font-medium transition-colors"
-        >
-          <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
-            <path d="M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6"></path>
-            <polyline points="15 3 21 3 21 9"></polyline>
-            <line x1="10" y1="14" x2="21" y2="3"></line>
-          </svg>
-          Swiss AI Chat
-        </a>
       </div>
 
       <!-- Per-replica detail blocks -->