fix: inverted tag expiration in Redis handler + saveItemOptions board name

- Fix critical bug: tag expiration comparison was inverted (< should be >)
  in Redis cache handler, which would prevent revalidateTag from clearing
  stale entries
- Pass board name to invalidateBoardCache in saveItemOptions
- Add clarifying comment about two-tier invalidation helpers

packages/api/src/router/widgets/options.ts

@@ -53,6 +53,10 @@ export const optionsRouter = createTRPCRouter({
         .set({ options: SuperJSON.stringify(options) })
         .where(eq(items.id, input.itemId));
 
-      invalidateBoardCache(input.boardId);
+      const board = await ctx.db.query.boards.findFirst({
+        where: eq(boards.id, input.boardId),
+        columns: { name: true },
+      });
+      invalidateBoardCache(input.boardId, board?.name);
     }),
 });