TEMP: re-enable index (with-index measurement)

Author: myieye

backend/FwLite/LcmCrdt/Migrations/20260506150734_AddCommitsOrderIndex.cs

@@ -13,12 +13,11 @@ public partial class AddCommitsOrderIndex : Migration
         /// <inheritdoc />
         protected override void Up(MigrationBuilder migrationBuilder)
         {
-            // TEMP: index disabled for baseline benchmark measurement (will be re-enabled before merge).
-            // migrationBuilder.CreateIndex(
-            //     name: "IX_Commits_DateTime_Counter_Id",
-            //     table: "Commits",
-            //     columns: ["DateTime", "Counter", "Id"],
-            //     descending: [true, true, true]);
+            migrationBuilder.CreateIndex(
+                name: "IX_Commits_DateTime_Counter_Id",
+                table: "Commits",
+                columns: ["DateTime", "Counter", "Id"],
+                descending: [true, true, true]);
         }
 
         /// <inheritdoc />