Add inventory persistence restore hook

AGRARIAN_DEVELOPMENT_ROADMAP.md

@@ -519,7 +519,10 @@ Target deliverable: A small group can join a server, spawn into one biome, gathe
   from the full developer HUD and shows occupied slots, total carried weight,
   and visible item stacks from the replicated inventory component.
 - [x] Add replication for inventory changes.
-- [ ] Add persistence for inventory.
+- [x] Add persistence for inventory. Player save data stores
+  `FAgrarianSavedPlayer::Inventory`, capture writes the inventory component's
+  stack array, restore now goes through `RestoreSavedItems`, and inventory UI
+  listeners are notified after load.
 - [x] Add debug item spawn command.
 
 ## 0.1.F Gathering And Resources