feat: add smartcmd dedicated server

major bug: when connecting to the server a second time, it gets softlocked and keeps repeating ticking connection A\n in debug logs until it times out.

Minecraft.Server/WorldManager.h

@@ -0,0 +1,92 @@
+#pragma once
+
+#include <string>
+#include <windows.h>
+
+#include "ServerProperties.h"
+
+struct _LoadSaveDataThreadParam;
+typedef struct _LoadSaveDataThreadParam LoadSaveDataThreadParam;
+
+namespace ServerRuntime
+{
+	/** Tick callback used while waiting on async storage/network work */
+	typedef void (*WorldManagerTickProc)();
+	/** Optional action handler used while waiting for server actions */
+	typedef void (*WorldManagerHandleActionsProc)();
+
+	/**
+	 * **World Bootstrap Status**
+	 *
+	 * Result type for world startup preparation, either loading an existing world or creating a new one
+	 * ワールド起動準備の結果種別
+	 */
+	enum EWorldBootstrapStatus
+	{
+		/** Found and loaded an existing world */
+		eWorldBootstrap_Loaded,
+		/** No matching save was found, created a new world context */
+		eWorldBootstrap_CreatedNew,
+		/** Bootstrap failed and server startup should be aborted */
+		eWorldBootstrap_Failed
+	};
+
+	/**
+	 * **World Bootstrap Result**
+	 *
+	 * Output payload returned by world startup preparation
+	 * ワールド起動準備の出力データ
+	 */
+	struct WorldBootstrapResult
+	{
+		/** Bootstrap status */
+		EWorldBootstrapStatus status;
+		/** Save data used for server initialization, `NULL` when creating a new world */
+		LoadSaveDataThreadParam *saveData;
+		/** Save ID that was actually selected */
+		std::string resolvedSaveId;
+
+		WorldBootstrapResult()
+			: status(eWorldBootstrap_Failed)
+			, saveData(NULL)
+		{
+		}
+	};
+
+	/**
+	 * **Bootstrap Target World For Server Startup**
+	 *
+	 * Resolves whether the target world should be loaded from an existing save or created as new
+	 * - Applies `level-name` and `level-id` from `server.properties`
+	 * - Loads when a matching save exists
+	 * - Creates a new world context only when no save matches
+	 * サーバー起動時のロードか新規作成かを確定する
+	 *
+	 * @param config Normalized `server.properties` values
+	 * @param actionPad padId used by async storage APIs
+	 * @param tickProc Tick callback run while waiting for async completion
+	 * @return Bootstrap result including whether save data was loaded
+	 */
+	WorldBootstrapResult BootstrapWorldForServer(
+		const ServerPropertiesConfig &config,
+		int actionPad,
+		WorldManagerTickProc tickProc);
+
+	/**
+	 * **Wait Until Server Action Returns To Idle**
+	 *
+	 * Waits until server action state reaches `Idle`
+	 * サーバーアクションの待機処理
+	 *
+	 * @param actionPad padId to monitor
+	 * @param timeoutMs Timeout in milliseconds
+	 * @param tickProc Tick callback run inside the wait loop
+	 * @param handleActionsProc Optional action handler callback
+	 * @return `true` when `Idle` is reached before timeout
+	 */
+	bool WaitForWorldActionIdle(
+		int actionPad,
+		DWORD timeoutMs,
+		WorldManagerTickProc tickProc,
+		WorldManagerHandleActionsProc handleActionsProc);
+}