fix(web): make invalidation hooks async with Promise.all and fix cross-view staleness

- useInvalidateTimeline and useInvalidatePlanningViews now return
  Promise.all instead of fire-and-forget void calls
- Timeline mutations now use useInvalidatePlanningViews to also
  invalidate allocation list views, preventing stale data
- AllocationsClient sequential awaits replaced with single
  invalidatePlanningViews() call (parallel invalidation)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

apps/web/src/components/allocations/AllocationsClient.tsx

@@ -5,6 +5,7 @@ import { useUrlFilters } from "~/hooks/useUrlFilters.js";
 import { useLocalStorage } from "~/hooks/useLocalStorage.js";
 import { formatDate } from "~/lib/format.js";
 import { trpc } from "~/lib/trpc/client.js";
+import { useInvalidatePlanningViews } from "~/hooks/useInvalidatePlanningViews.js";
 import { AllocationModal } from "./AllocationModal.js";
 import type {
   AllocationLike,
@@ -171,6 +172,7 @@ export function AllocationsClient() {
 
   const selection = useSelection();
   const utils = trpc.useUtils();
+  const invalidatePlanningViews = useInvalidatePlanningViews();
   const { canViewCosts } = usePermissions();
 
   // ─── Column visibility ────────────────────────────────────────────────────
@@ -205,31 +207,23 @@ export function AllocationsClient() {
   const allocationQueryFailure = isError ? getAllocationQueryFailure(error) : null;
 
   const deleteDemandMutation = trpc.allocation.deleteDemandRequirement.useMutation({
-    onSuccess: async () => {
-      await utils.allocation.list.invalidate();
-      await utils.allocation.listView.invalidate();
-    },
+    onSuccess: () => invalidatePlanningViews(),
   });
 
   const deleteAssignmentMutation = trpc.allocation.deleteAssignment.useMutation({
-    onSuccess: async () => {
-      await utils.allocation.list.invalidate();
-      await utils.allocation.listView.invalidate();
-    },
+    onSuccess: () => invalidatePlanningViews(),
   });
 
   const batchDeleteMutation = trpc.allocation.batchDelete.useMutation({
     onSuccess: async () => {
-      await utils.allocation.list.invalidate();
-      await utils.allocation.listView.invalidate();
+      await invalidatePlanningViews();
       selection.clear();
     },
   });
 
   const batchStatusMutation = trpc.allocation.batchUpdateStatus.useMutation({
     onSuccess: async () => {
-      await utils.allocation.list.invalidate();
-      await utils.allocation.listView.invalidate();
+      await invalidatePlanningViews();
       selection.clear();
       setShowStatusToast(true);
     },
@@ -237,8 +231,7 @@ export function AllocationsClient() {
 
   const batchDateShiftMutation = trpc.timeline.batchShiftAllocations.useMutation({
     onSuccess: async () => {
-      await utils.allocation.list.invalidate();
-      await utils.allocation.listView.invalidate();
+      await invalidatePlanningViews();
       selection.clear();
       setShowDateShiftModal(false);
     },