Readd last API patch (with TODO)

patches/api/0486-Item-serialization-as-json.patch

@@ -1,47 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: masmc05 <masmc05@gmail.com>
-Date: Sun, 11 Aug 2024 03:01:52 +0300
-Subject: [PATCH] Item serialization as json
-
-
-diff --git a/src/main/java/org/bukkit/UnsafeValues.java b/src/main/java/org/bukkit/UnsafeValues.java
-index c80e0ef587a001ee6de3f5c182cc9696d58bafeb..10c87b7c19ed3eab28fdce5f225df3767292ee0a 100644
---- a/src/main/java/org/bukkit/UnsafeValues.java
-+++ b/src/main/java/org/bukkit/UnsafeValues.java
-@@ -174,6 +174,36 @@ public interface UnsafeValues {
- 
-     ItemStack deserializeItem(byte[] data);
- 
-+    /**
-+     * Serializes this itemstack to json format.
-+     * It is safe for data migrations as it will use the built-in data converter instead of bukkit's
-+     * dangerous serialization system.
-+     * <p>
-+     * The emitted json object's format will inherently change across versions and hence should not be used for
-+     * non-development purposes like plugin configurations or end-user input.
-+     *
-+     * @return json object representing this item.
-+     * @see #deserializeItemFromJson(com.google.gson.JsonObject)
-+     * @throws IllegalArgumentException if the passed itemstack is {@link ItemStack#empty()}.
-+     */
-+    @NotNull
-+    com.google.gson.JsonObject serializeItemAsJson(@NotNull ItemStack itemStack);
-+
-+    /**
-+     * Creates an itemstack from a json object.
-+     * <p>
-+     * This method expects a json object in the format emitted by {@link #serializeItemAsJson(ItemStack)}.
-+     * <p>
-+     * The emitted json object's format will inherently change across versions and hence should not be used for
-+     * non-development purposes like plugin configurations or end-user input.
-+     *
-+     * @param data object representing an item in Json format
-+     * @return the deserialize item stack, migrated to the latest data version if needed.
-+     * @throws IllegalArgumentException if the json object is not a valid item
-+     * @see #serializeItemAsJson(ItemStack)
-+     */
-+    @NotNull ItemStack deserializeItemFromJson(@NotNull com.google.gson.JsonObject data) throws IllegalArgumentException;
-+
-     byte[] serializeEntity(org.bukkit.entity.Entity entity);
- 
-     default org.bukkit.entity.Entity deserializeEntity(byte[] data, World world) {