Fix completed runs not appearing in list + add purge-failed endpoint

- Update save_run_cache to also update actor_id, recipe, inputs on conflict
- Add logging for actor_id when saving runs to run_cache
- Add admin endpoint DELETE /runs/admin/purge-failed to delete all failed runs

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/templates/cache/detail.html

@@ -40,15 +40,23 @@
     </div>
 
     <!-- Friendly Name -->
-    {% if cache.friendly_name %}
-    <div class="bg-gray-800 rounded-lg border border-gray-700 p-4 mb-6">
-        <div class="mb-2">
+    <div id="friendly-name-section" class="bg-gray-800 rounded-lg border border-gray-700 p-4 mb-6">
+        <div class="flex items-center justify-between mb-2">
             <span class="text-gray-500 text-sm">Friendly Name</span>
-            <p class="text-blue-400 font-medium text-lg mt-1">{{ cache.friendly_name }}</p>
+            <button hx-get="/cache/{{ cache.cid }}/name-form"
+                    hx-target="#friendly-name-section"
+                    hx-swap="innerHTML"
+                    class="text-blue-400 hover:text-blue-300 text-sm">
+                Edit
+            </button>
         </div>
-        <p class="text-gray-500 text-xs">Use in recipes: <code class="bg-gray-900 px-2 py-0.5 rounded">{{ cache.base_name }}</code></p>
+        {% if cache.friendly_name %}
+        <p class="text-blue-400 font-medium text-lg">{{ cache.friendly_name }}</p>
+        <p class="text-gray-500 text-xs mt-1">Use in recipes: <code class="bg-gray-900 px-2 py-0.5 rounded">{{ cache.base_name }}</code></p>
+        {% else %}
+        <p class="text-gray-500 text-sm">No friendly name assigned. Click Edit to add one.</p>
+        {% endif %}
     </div>
-    {% endif %}
 
     <!-- User Metadata (editable) -->
     <div id="metadata-section" class="bg-gray-800 rounded-lg border border-gray-700 p-4 mb-6">