feat(warehouse): P1 dashboard analytics — dwell/aging, cycle-time + on-time, live deltas

Adds the operational-performance layer to the warehouse cockpit:

- Dwell time & aging: dwellStats() (avg + 0-3/4-7/8-14/15+ buckets over
  in-warehouse items) → DwellAgingCard histogram.
- Cycle time & on-time: cycleStats() (arrived→ready→loaded→dispatched stage
  averages + dock-to-dispatch) and onTimeDispatchStats() (share of items that
  left before their storage free-days expired, resolved via the fee engine's
  own rule matching) → CycleTimeCard.
- Live tiles: opsStats() now returns receivedYesterday; KpiStrip renders an
  optional ▲/▼ delta, and the ops strip shows received-today vs yesterday.

New endpoints: GET /warehouse-inventory/{dwell-stats,cycle-stats} and
/warehouse-fees/on-time-dispatch (all guarded). New "Performance" section on
WarehouseDashboardPage. On-time reads N/A when there is no sample / no active
storage rule.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/edr-freight-web/backoffice/src/services/warehouse.service.ts

@@ -7,6 +7,9 @@ import type {
   ZoneOccupancy,
   WarehouseOpsStats,
   WarehouseThroughputPoint,
+  WarehouseDwellStats,
+  WarehouseCycleStats,
+  WarehouseOnTimeStats,
   AccrualDashboardRow,
   AllocationCriteria,
   AllocationPreviewResult,
@@ -399,6 +402,10 @@ export const warehouseService = {
     apiClient.get<WarehouseThroughputPoint[]>(
       URL_CONSTANTS.WAREHOUSE_INVENTORY.THROUGHPUT(granularity),
     ),
+  dwellStats: () =>
+    apiClient.get<WarehouseDwellStats>(URL_CONSTANTS.WAREHOUSE_INVENTORY.DWELL_STATS),
+  cycleStats: () =>
+    apiClient.get<WarehouseCycleStats>(URL_CONSTANTS.WAREHOUSE_INVENTORY.CYCLE_STATS),
   autoUnloadArrived: () =>
     apiClient.post<AutoUnloadResult>(URL_CONSTANTS.WAREHOUSE_INVENTORY.AUTO_UNLOAD_ARRIVED),
   autoLoadReady: () =>
@@ -455,6 +462,8 @@ export const warehouseService = {
     apiClient.get<AccrualDashboardRow[]>(URL_CONSTANTS.WAREHOUSE_RULES.ACCRUAL_DASHBOARD, {
       params: cleanParams({ billingCurrency }),
     }),
+  onTimeDispatch: () =>
+    apiClient.get<WarehouseOnTimeStats>(URL_CONSTANTS.WAREHOUSE_RULES.ON_TIME_DISPATCH),
   acknowledgeAccrual: (inventoryId: string, body: { snoozeDays?: number; note?: string } = {}) =>
     apiClient.post(URL_CONSTANTS.WAREHOUSE_RULES.ACCRUAL_ACK(inventoryId), body),
   unacknowledgeAccrual: (inventoryId: string) =>