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/Console/ServerCliParser.h

@@ -0,0 +1,63 @@
+#pragma once
+
+#include <string>
+#include <vector>
+
+namespace ServerRuntime
+{
+	/**
+	 * **Parsed command line**
+	 */
+	struct ServerCliParsedLine
+	{
+		std::string raw;
+		std::vector<std::string> tokens;
+		bool trailingSpace;
+
+		ServerCliParsedLine()
+			: trailingSpace(false)
+		{
+		}
+	};
+
+	/**
+	 * **Completion context for one input line**
+	 *
+	 * Indicates current token index, token prefix, and the fixed line prefix.
+	 */
+	struct ServerCliCompletionContext
+	{
+		ServerCliParsedLine parsed;
+		size_t currentTokenIndex;
+		std::string prefix;
+		std::string linePrefix;
+
+		ServerCliCompletionContext()
+			: currentTokenIndex(0)
+		{
+		}
+	};
+
+	/**
+	 * **CLI parser helpers**
+	 *
+	 * Converts raw input text into tokenized data used by execution and completion.
+	 */
+	class ServerCliParser
+	{
+	public:
+		/**
+		 * **Tokenize one command line**
+		 *
+		 * Supports quoted segments and escaped characters.
+		 */
+		static ServerCliParsedLine Parse(const std::string &line);
+
+		/**
+		 * **Build completion metadata**
+		 *
+		 * Determines active token position and reusable prefix parts.
+		 */
+		static ServerCliCompletionContext BuildCompletionContext(const std::string &line);
+	};
+}