Persist unlocked blueprints to the database.

src/main/java/emu/grasscutter/game/managers/InventoryManager.java

@@ -824,7 +824,6 @@ public class InventoryManager {
 		int used = 0;
 		
 		// Use
-		Grasscutter.getLogger().info("Item: {}", useItem.getItemData().getId());
 		switch (useItem.getItemData().getMaterialType()) {
 			case MATERIAL_FOOD:
 				if (useItem.getItemData().getUseTarget().equals("ITEM_USE_TARGET_SPECIFY_DEAD_AVATAR")) {
@@ -856,8 +855,9 @@ public class InventoryManager {
 					// Determine the forging item we should unlock.
 					int forgeId = Integer.parseInt(useItem.getItemData().getItemUse().get(0).getUseParam().get(0));
 
-					// Tell the client that this blueprint is now unlocked.
+					// Tell the client that this blueprint is now unlocked and add the unlocked item to the player.
 					player.sendPacket(new PacketForgeFormulaDataNotify(forgeId));
+					player.getUnlockedForgingBlueprints().add(forgeId);
 
 					// Use up the blueprint item.
 					used = 1;

src/main/java/emu/grasscutter/game/player/Player.java

@@ -89,6 +89,7 @@ public class Player {
 	private Set<Integer> nameCardList;
 	private Set<Integer> flyCloakList;
 	private Set<Integer> costumeList;
+	private Set<Integer> unlockedForgingBlueprints;
 
 	private Integer widgetId;
 
@@ -183,6 +184,7 @@ public class Player {
 		this.nameCardList = new HashSet<>();
 		this.flyCloakList = new HashSet<>();
 		this.costumeList = new HashSet<>();
+		this.unlockedForgingBlueprints = new HashSet<>();
 
 		this.setSceneId(3);
 		this.setRegionId(1);
@@ -515,6 +517,10 @@ public class Player {
 		return this.nameCardList;
 	}
 
+	public Set<Integer> getUnlockedForgingBlueprints() {
+		return unlockedForgingBlueprints;
+	}
+
 	public MpSettingType getMpSetting() {
 		return MpSettingType.MP_SETTING_TYPE_ENTER_AFTER_APPLY; // TEMP
 	}