Implemented consumer interface API, support TextComponent serialize to json string, fix some bugs

libmc-nbt/src/commonMain/kotlin/cn/rtast/libmc/nbt/NBTTagJson.kt

@@ -0,0 +1,55 @@
+/*
+ * Copyright © 2026 RTAkland
+ * Author: RTAkland
+ * Date: 2026/9/10
+ */
+
+
+package cn.rtast.libmc.nbt
+
+public fun NBTTag.toJsonString(): String = when (this) {
+    is NBTTag.StringTag -> buildString {
+        append('"')
+        for (ch in value) {
+            when (ch) {
+                '\\' -> append("\\\\")
+                '"' -> append("\\\"")
+                '\b' -> append("\\b")
+                '\u000C' -> append("\\f")
+                '\n' -> append("\\n")
+                '\r' -> append("\\r")
+                '\t' -> append("\\t")
+                else -> {
+                    if (ch < ' ') {
+                        val hex = ch.code.toString(16).padStart(4, '0')
+                        append("\\u").append(hex)
+                    } else {
+                        append(ch)
+                    }
+                }
+            }
+        }
+        append('"')
+    }
+
+    is NBTTag.ByteTag -> if (value == 1.toByte() || value == 0.toByte()) {
+        if (value == 1.toByte()) "true" else "false"
+    } else value.toString()
+
+    is NBTTag.ShortTag -> value.toString()
+    is NBTTag.IntTag -> value.toString()
+    is NBTTag.LongTag -> value.toString()
+    is NBTTag.FloatTag -> value.toString()
+    is NBTTag.DoubleTag -> value.toString()
+
+    is NBTTag.ByteArrayTag -> value.joinToString(prefix = "[", postfix = "]") { it.toString() }
+    is NBTTag.IntArrayTag -> value.joinToString(prefix = "[", postfix = "]") { it.toString() }
+    is NBTTag.LongArrayTag -> value.joinToString(prefix = "[", postfix = "]") { it.toString() }
+
+    is NBTTag.ListTag -> value.joinToString(prefix = "[", postfix = "]") { it.toJsonString() }
+
+    is NBTTag.CompoundTag -> value.entries.joinToString(prefix = "{", postfix = "}") { (k, v) ->
+        val escapedKey = NBTTag.StringTag(k).toJsonString()
+        "$escapedKey:${v.toJsonString()}"
+    }
+}