fix: persistence on columns awards

frontend/src/components/RecentQSOsGrid.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useMemo, useRef, useState } from 'react';
+import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import {
   AllCommunityModule, ModuleRegistry, themeQuartz,
   type ColDef, type ColumnState, type GridReadyEvent, type RowDoubleClickedEvent,
@@ -288,6 +288,18 @@ export function RecentQSOsGrid({ rows, onRowDoubleClicked, onRowSelected, onUpda
     if (state) saveState(COL_STATE_KEY, state);
   }, []);
 
+  // The award columns load asynchronously; when they arrive (or change) the
+  // columnDefs memo is rebuilt and AG Grid re-applies each colDef's `hide`
+  // default — wiping the user's saved visibility (award columns reappear,
+  // manually-shown ones like LoTW sent vanish). Re-apply the saved state after
+  // every rebuild so the user's choices win. No-op before the grid is ready.
+  useEffect(() => {
+    const api = gridRef.current?.api;
+    if (!api) return;
+    const local = loadLocal(COL_STATE_KEY);
+    if (local) api.applyColumnState({ state: local as ColumnState[], applyOrder: true });
+  }, [awardCols]);
+
   function handleRowDoubleClicked(e: RowDoubleClickedEvent<QSOForm>) {
     if (e.data && onRowDoubleClicked) onRowDoubleClicked(e.data);
   }