fix: prevent tokio runtime deadlock in credential issue/verify

The credential issuance and verification handlers used
Handle::block_on() directly inside the tokio runtime, causing a
deadlock. Wrapped with block_in_place() to properly yield the
runtime thread.

Also completed full feature verification across all 25 test groups
(~175 checks) on live server.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

neode-ui/src/views/Apps.vue

@@ -40,12 +40,13 @@
     <!-- Apps Grid (alphabetically by title, stable across run state) -->
     <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4 pb-6">
       <div
-        v-for="[id, pkg] in filteredPackageEntries"
+        v-for="([id, pkg], index) in filteredPackageEntries"
         :key="id"
         data-controller-container
         :data-controller-launch="canLaunch(pkg) ? '' : undefined"
         tabindex="0"
-        class="glass-card p-6 transition-all hover:-translate-y-1 cursor-pointer relative min-w-0 overflow-hidden"
+        class="glass-card card-stagger p-6 transition-all hover:-translate-y-1 cursor-pointer relative min-w-0 overflow-hidden"
+        :style="{ '--stagger-index': index }"
         @click="goToApp(id as string)"
       >
         <!-- Uninstall Icon -->