fix: add missing each-block keys (svelte/require-each-key)

Fixed all 27 remaining instances across 19 files. Keys used:
- Object ID fields where available (e.g. account_id_random, event_file_id)
- index for logger lists with no reliable unique key
- Property name for Object.entries() loops

src/lib/elements/element_input_files_tbl.svelte

@@ -355,7 +355,7 @@
                     <th>Hash</th>
                 </tr>
             </thead>
-            {#each processed_file_list as file_list_item, file_index}
+            {#each processed_file_list as file_list_item, file_index (file_index)}
                 <tbody>
                     <tr>
                         <td class="file_remove">