feat(files): add file management UI for scenarios and runs

- add scenario upload and download UI with typed file API helpers
- show run artifacts on run detail pages after polling completes
- handle multipart uploads and absolute file paths for downloads

client/src/ui/Table/Table.tsx

@@ -76,8 +76,7 @@ export function Table<T>({
 
   const handleSortClick = (key: string) => {
     if (!onSort) return;
-    const nextDir: SortDirection =
-      sortBy === key && sortDir === 'asc' ? 'desc' : 'asc';
+    const nextDir: SortDirection = sortBy === key && sortDir === 'asc' ? 'desc' : 'asc';
     onSort(key, nextDir);
   };
 
@@ -101,19 +100,12 @@ export function Table<T>({
           <tr>
             {columns.map((col) => {
               const isSorted = col.sortable && sortBy === col.key;
-              const SortIcon = isSorted
-                ? sortDir === 'asc'
-                  ? ArrowUp
-                  : ArrowDown
-                : ArrowUpDown;
+              const SortIcon = isSorted ? (sortDir === 'asc' ? ArrowUp : ArrowDown) : ArrowUpDown;
 
               return (
                 <th
                   key={col.key}
-                  className={[
-                    styles.th,
-                    col.sortable ? styles.thSortable : '',
-                  ]
+                  className={[styles.th, col.sortable ? styles.thSortable : '']
                     .filter(Boolean)
                     .join(' ')}
                   style={{
@@ -127,10 +119,7 @@ export function Table<T>({
                     {col.sortable && (
                       <SortIcon
                         size={12}
-                        className={[
-                          styles.sortIcon,
-                          isSorted ? styles.sortIconActive : '',
-                        ]
+                        className={[styles.sortIcon, isSorted ? styles.sortIconActive : '']
                           .filter(Boolean)
                           .join(' ')}
                         aria-hidden="true"