Improve Debug build and JIT script execution

- Use VirtualAlloc with PAGE_EXECUTE_READWRITE for JIT code buffers
- Remove DEP disable flag, rely on proper memory allocation instead
- Allow Debug build to use command-line IP args (fallback to 127.0.0.1)
- Add CHANGELOG.md documenting all recent fixes

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+## [2024-11-30] - Build System & Script Engine Fixes
+
+### Fixed
+- **Release_NoGD Configuration**: Added missing compiler settings (SSE2, OpenMP, warning suppressions) to match Release configuration
+- **Debug Build Linker Error**: Added `_USE_32BIT_TIME_T` preprocessor definition to GlobalScript Debug configuration to fix `ParsePacket::HandleUserLogin` time_t size mismatch (LNK2019)
+- **Script Execution Crash**: Implemented VirtualAlloc with PAGE_EXECUTE_READWRITE for JIT code buffer allocation to resolve DEP-related memory access violations
+- **Standalone Debugging**: Modified `_RYL_TEST` mode to automatically enable `ADMIN_L3` without requiring Login.exe
+
+### Changed
+- **Working Directory**: Set LocalDebuggerWorkingDirectory to `F:\YouxiLand\ROW` for all configurations to enable proper resource loading during debugging
+- **Server IP Handling**: Modified `GetServerInfo()` to respect command-line IP arguments even in Debug builds, falling back to `127.0.0.1` only when no IP is provided
+- **Memory Management**: Enhanced `CVirtualMachine::Destroy()` to properly detect and free VirtualAlloc-allocated memory using VirtualQuery
+
+### Added
+- **Debug Logging**: Added MCF file decryption logging (`.decrypted.log` files) for script debugging
+- **Execute State Logging**: Added comprehensive state logging to `script_execute.log` before script execution
+
+### Technical Details
+- MCF XOR encryption key: `0x82fac623 ^ 0x601f1ac4`
+- Stack reserve size increased to 8MB for Debug configuration
+- Code buffer now allocated with executable permissions for JIT execution compatibility with Windows 10/11 DEP
+
+### Notes
+- Visual Studio 2010 project
+- DirectX 8 graphics API
+- Custom JIT script engine with x86 machine code execution