fixed: remove unnecessary

Author: Alumopper

common/src/main/java/top/katton/platform/ClientApiHooks.java

@@ -8,7 +8,6 @@ import top.katton.Katton
 import top.katton.util.Event
 import java.util.concurrent.ConcurrentHashMap
 
-
 internal val LOGGER = LogUtils.getLogger()
 
 private val onceRegistry = ConcurrentHashMap<String, MutableSet<String>>()
@@ -23,6 +22,8 @@ private fun onceNamespace(namespace: String?): String {
 /**
  * Execute [block] only once for a given [key] under the current script owner namespace.
  *
+ * When script is reloaded, the markers won't be cleared, so the block won't execute again until the marker is reset with [resetOnce] or [clearOnce].
+ *
  * When called inside a script execution, the default namespace is that script's owner id;
  * outside script execution, the default namespace is "global".
  *
@@ -66,11 +67,25 @@ fun clearOnce(namespace: String? = null) {
 
 /**
  * Current minecraft server instance. Maybe null during client-side execution.
+ *
+ * Use this property when you need optional access to the server.
+ * For cases where the server must be available, use [requireServer] instead.
+ *
+ * @return The current MinecraftServer instance, or null if not available
  */
 val server: MinecraftServer?
     get() = Katton.server
 
-
+/**
+ * Requires the Minecraft server instance to be available.
+ *
+ * Use this function when the server must be present for the operation to succeed.
+ * Throws an error if the server is not available (e.g., during client-side execution
+ * or before the server has started).
+ *
+ * @return The current MinecraftServer instance
+ * @throws IllegalStateException if the server is not available
+ */
 fun requireServer(): MinecraftServer =
     server ?: error("MinecraftServer is not available (client-side or not started)")