fix(ui) : prevent dropdown overflow clipping in DataTable

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

app/components/common/DataTable.vue

@@ -63,7 +63,7 @@
 
     <!-- Table (always shown when there are filterable columns, even during loading or with 0 rows) -->
     <template v-else>
-      <div class="overflow-x-auto relative">
+      <div class="overflow-x-auto overflow-y-clip relative">
         <!-- Loading overlay (keeps table & filter inputs visible) -->
         <div
           v-if="loading && hasFilterableColumns"