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/Access/BanManager.h

@@ -0,0 +1,106 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+namespace ServerRuntime
+{
+	namespace Access
+	{
+		/**
+		 * Information shared with player bans and IP bans
+		 * プレイヤーBANとIP BANで共有する情報
+		 */
+		struct BanMetadata
+		{
+			std::string created;
+			std::string source;
+			std::string expires;
+			std::string reason;
+		};
+
+		struct BannedPlayerEntry
+		{
+			std::string xuid;
+			std::string name;
+			BanMetadata metadata;
+		};
+
+		struct BannedIpEntry
+		{
+			std::string ip;
+			BanMetadata metadata;
+		};
+
+		/**
+		 * Dedicated server BAN file manager.
+		 *
+		 * Files:
+		 * - banned-players.json
+		 * - banned-ips.json
+		 *
+		 * This class only handles storage/caching.
+		 * Connection-time hooks are wired separately.
+		 */
+		class BanManager
+		{
+		public:
+			/**
+			 * **Create Ban Manager**
+			 *
+			 * Binds the manager to the directory that stores the dedicated-server access files
+			 * Dedicated Server のアクセスファイル配置先を設定する
+			 */
+			explicit BanManager(const std::string &baseDirectory = ".");
+
+			/**
+			 * Creates empty JSON array files when the dedicated server starts without persisted access data
+			 * BANファイルが無い初回起動時に空JSONを用意する
+			 */
+			bool EnsureBanFilesExist() const;
+			bool Reload();
+			bool Save() const;
+
+			bool LoadPlayers(std::vector<BannedPlayerEntry> *outEntries) const;
+			bool LoadIps(std::vector<BannedIpEntry> *outEntries) const;
+			bool SavePlayers(const std::vector<BannedPlayerEntry> &entries) const;
+			bool SaveIps(const std::vector<BannedIpEntry> &entries) const;
+
+			const std::vector<BannedPlayerEntry> &GetBannedPlayers() const;
+			const std::vector<BannedIpEntry> &GetBannedIps() const;
+			/**
+			 * Copies only currently active player BAN entries so expired metadata does not leak into command output
+			 * 期限切れを除いた有効なプレイヤーBAN一覧を複製取得する
+			 */
+			bool SnapshotBannedPlayers(std::vector<BannedPlayerEntry> *outEntries) const;
+			/**
+			 * Copies only currently active IP BAN entries so expired metadata does not leak into command output
+			 * 期限切れを除いた有効なIP BAN一覧を複製取得する
+			 */
+			bool SnapshotBannedIps(std::vector<BannedIpEntry> *outEntries) const;
+
+			bool IsPlayerBannedByXuid(const std::string &xuid) const;
+			bool IsIpBanned(const std::string &ip) const;
+
+			bool AddPlayerBan(const BannedPlayerEntry &entry);
+			bool AddIpBan(const BannedIpEntry &entry);
+			bool RemovePlayerBanByXuid(const std::string &xuid);
+			bool RemoveIpBan(const std::string &ip);
+
+			std::string GetBannedPlayersFilePath() const;
+			std::string GetBannedIpsFilePath() const;
+
+			static BanMetadata BuildDefaultMetadata(const char *source = "Server");
+
+		private:
+			static void NormalizeMetadata(BanMetadata *metadata);
+
+			std::string BuildPath(const char *fileName) const;
+
+		private:
+			std::string m_baseDirectory;
+			std::vector<BannedPlayerEntry> m_bannedPlayers;
+			std::vector<BannedIpEntry> m_bannedIps;
+		};
+	}
+}